Search Results — 2000 specimen records retrieved (1546 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC148114  Rosa gymnocarpa H. L. Mason 1921-5-14 s.n. Alameda Hayward Comment
  CAS-BOT-BC150305  Diplacus aurantiacus H. L. Mason 1917-3-10 49 Alameda Temescal (Probably Lake Temescal, Berkeley Hills) Comment
  CAS-BOT-BC151211  Prunus virginiana var. demissa H. L. Mason 1921-5-14 s.n. Alameda Haywards Comment
  CAS-BOT-BC159638  Drymocallis glandulosa var. glandulosa H. L. Mason 1921-5-14 s.n. Alameda Hayward Comment
  CAS-BOT-BC226518  Leptosiphon acicularis H. L. Mason 1921-5-14 s.n. Alameda Hayward Comment
  CAS-BOT-BC226589  Leptosiphon ambiguus Herbert L. Mason 1926-4-11 2825 Alameda Rancho Repose, Mount Hamilton Range, Cedar Mountain Comment
  CAS-BOT-BC234605  Symphoricarpos mollis H. L. Mason 1921-5-14 s.n. Alameda Haywards [Hayward] Comment
  CAS-BOT-BC241464  Lonicera involucrata var. ledebourii H. L. Mason 1917-2-9 24 Alameda Berkeley Hills Comment
  CAS-BOT-BC40741  Erysimum capitatum H. L. Mason 1926-4-11 2843 Alameda Rancho Repose, Cedar Mountain, Arroyo Mocho, Mount Hamilton Range. Comment
  CAS-BOT-BC451790  Triglochin maritima Herbert L. Mason 1946-6-28 12879 Alameda Oakland Airport, mouth of San Leandro Creek Comment
  CAS-BOT-BC92914  Ribes californicum var. californicum H. L. Mason 1921-5-14 s.n. Alameda Haywards. Comment
  JEPS14812  Arabidopsis thaliana H. L. Mason 1928-4-5 Alameda Berkeley, University grounds Berkeley; , University grounds Comment
  LA6498  Hesperocyparis sargentii Herbert L. Mason; 1926-4-16 sn Alameda Cedar Mountain, near the summit Comment
  UC1039565  Dodecatheon hendersonii Herbert L. Mason 1923-3-3 360 Alameda Rancho Repose , Rancho Repose (Cedar Mt.) Comment
  UC1076465  Equisetum telmateia subsp. braunii Herbert L. Mason 1926-3-17 2741 Alameda Strawberry Canyon Berkeley Comment
  UC1093853  Salicornia virginica Herbert L. Mason 1928-9-2 4949 Alameda Bay Farm Island Comment
  UC1179031  Juncus bufonius var. bufonius Herbert L. Mason 1926-5-24 3224 Alameda University of California Campus Berkeley Comment
  UC555391  Melilotus indicus H. L. Mason 1928-5-10 4576 Alameda University of California campus Berkeley Comment
  UC555430  Trifolium bifidum var. decipiens H. L. Mason 1928-5-6 4563 Alameda Cedar Mtn Comment
  UC555449  Trifolium gracilentum H. L. Mason 1926-4-10 2812 Alameda vicinity Cedar Mtn (Arroyo Mocho) Comment
  UC555467  Pediomelum californicum Herbert L. Mason 1928-5-6 4573 Alameda Cedar Mountain Cedar Mountain (mountain top) Comment
  UC555478  Trifolium oliganthum H. L. Mason 1926-4-15 4359 Alameda e end Moraga Ridge Comment
  UC555488  Trifolium albopurpureum var. dichotomum H. L. Mason 1928-4-15 4356 Alameda e end Moraga Ridge Comment
  UC555563  Horkelia californica subsp. frondosa H. L. Mason 1926-5-26 3244 Alameda Sunol Comment
  UC566627  Senecio aronicoides Herbert L. Mason 1924-4-20 900 Alameda Berkeley Hills Berkeley, Berkeley Hills Comment
  UC566652  Packera breweri H. L. Mason 1926-4-11 2837 Alameda Cedar Mountain and Rancho Repose Mount Hamilton Range, Arroyo Mocho Comment
  UC566883  Sanicula bipinnata H. L. Mason 1926-4-10 2801 Alameda Mount Hamilton Range, Cedar Mountain via Arroyo Mocho Cedar Mountain; Mount Hamilton Range, Cedar Mountain Comment
  UC566884  Sanicula bipinnatifida H. L. Mason 1926-3-17 2743 a Alameda Berkeley Hills, Strawberry Canyon Strawberry Canyon; Berkeley Hills, Strawberry Canyon Comment
  UC566935  Apocynum androsaemifolium H. L. Mason 1932-5-6 7071 Alameda Oakland Hills, Skyline Blvd. Comment
  UC570942  Saxifraga californica Herbert L. Mason 1926-4-11 2832 Alameda Cedar Mountain, Rancho Repose Cedar Mountain; , Rancho Repose Comment
  UC571136  Geranium dissectum H. L. Mason 1926-5-26 3243 Alameda Niles Canyon Comment
  UC573097  Cryptantha flaccida H. L. Mason 1926-4-10 2804 Alameda near Cedar Mountain; Mount Hamilton Range, Arroyo Mocho Comment
  UC634658  Clarkia breweri H. L. Mason 1928-5-6 4557 Alameda Cedar Mountain Mount Hamilton Range Comment
  UC634766  Garrya elliptica H. L. Mason 1926-1-9 2635 Alameda head of San Leandro Canyon Comment
  UC634936  Claytonia exigua subsp. exigua H. L. Mason 1926-4-11 2854 Alameda between Cedar Mountain and Rancho Repose; Mount Hamilton Range Comment
  UC634962  Myosurus minimus H. L. Mason 1931-3-26 Alameda s en of Grizzly Peak; Berkeley Hills Comment
  UC635264  Allium unifolium H. L. Mason 1929-6-22 5334 Alameda Oakland Hills Comment
  UC635567  Dirca occidentalis Herbert L. Mason 1925-2-12 1238 Alameda summit Skyline Boulevard; Oakland Hills Comment
  UC635647  Githopsis diffusa subsp. robusta H. L. Mason 1928-5-6 4572 Alameda Cedar Mountain Mount Hamilton Range Comment
  UC672101  Fritillaria liliacea Herbert L. Mason 1931-3-13 5813 Alameda Lake Chabot Comment
  UC672105  Fritillaria affinis Herbert L. Mason 1928-5-6 4571 Alameda Mount Hamilton Range, on Cedar Mountain Cedar Mountain; Mount Hamilton Range, Cedar Mountain Comment
  UC672179  Conyza canadensis H. L. Mason 1927-10-4 4112 a Alameda University of California Berkeley Campus Comment
  UC672307  Baccharis pilularis Herbert L. Mason 1926-11-1 3647 Alameda Dimond Canyon, Oakland Hills Comment
  UC672333  Phacelia divaricata Herbert L. Mason 1926-4-11 2852 Alameda Rancho Repose Cedar Mountain Comment
  UC672475  Collinsia parviflora H. L. Mason 1926-4-11 2851 Alameda Cedar Mountain and Rancho Repose Mount Hamilton Range, Arroyo Mocho (Arroyo Mocho) Comment
  UC672572  Pedicularis densiflora H. L. Mason 1925-2-16 1250 Alameda n of Mills College (on summit and n-facing slopes) Comment
  UC673303  Tropidocarpum capparideum H. L. Mason 1932-3-19 6818 Alameda w Tracy (road from Mountain House to Midway) Comment
  UC673304  Tropidocarpum gracile H. L. Mason 1932-3-19 6817 Alameda w Tracy (road from Mountain House to Midway) Comment
  UC673368  Zigadenus venenosus var. venenosus H. L. Mason 1928-5-6 4554 Alameda Cedar Mountain Mount Hamilton Range Comment
  UC673628  Ancistrocarphus filagineus H. L. Mason 1928-5-6 4558 Alameda Cedar Mountain; Mount Hamilton Range Comment
  UC699630  Lapsana communis H. L. Mason 1944-7-6 Alameda University of California, Berkeley Campus Comment
  UC844494  Trillium ovatum H. L. Mason 1917-2-2 4 Alameda Redwood Canyon Comment
  UC907987  Linanthus androsaceus Herbert L. Mason 1924-4-20 901 Alameda Berkeley Hills Comment
  UC908669  Linanthus bicolor Herbert L. Mason 1928-5-6 4551 Alameda Cedar Mountain Mount Hamilton Range Comment
  UC908909  Gilia achilleifolia subsp. multicaulis Herbert L. Mason 1926-4-11 2822 Alameda Rancho Repose , Rancho Repose (Cedar Mt.) Comment
  UC909080  Polemonium carneum Herbert L. Mason 1932-4-16 6932 Alameda summit <of road> Stonybrook Creek Comment
Read comments
May 31 2011
  UC909129  Phlox gracilis Herbert L. Mason 1925-3-23 1307 Alameda Sunol Comment
  UC912201  Soliva sessilis Herbert L. Mason 1924-5-13 1012 Alameda Berkeley Hills Comment
  UC912375  Plectritis ciliosa subsp. ciliosa Herbert L. Mason 1926-4-11 2836 Alameda Cedar Mountain, Rancho Repose Rancho Repose; Cedar Mountain, Rancho Repose Comment
  UC912577  Vulpia bromoides Herbert L. Mason 1931-4-24 5857 Alameda Berkeley Hills; above Claremont Hotel Comment
  UC912585  Agrostis viridis Herbert L. Mason 1929-5-24 3232 Alameda University of Calif. Campus Berkeley Comment
  UC912587  Vulpia microstachys var. ciliata Herbert L. Mason 1932-5-4 7066 Alameda Laundry Farm; Oakland Hills Comment
  UC912634  Phalaris minor Herbert L. Mason 1926-5-24 3230 Alameda Berkeley, Univ. of Calif. campus <University of California>; Berkeley, Univ. of Calif. campus Comment
  UC912639  Lolium temulentum Herbert L. Mason 1926-5-24 3227 Alameda Berkeley, University of California campus Comment
  UC964772  Malva sylvestris Herbert L. Mason 1952-6-10 Alameda near Dwinelle Hall (Berkeley, University of California); Berkeley, University of California Comment
  UCD45931  Quercus durata var. durata Herbert L. Mason 1929-10-20 5509 Alameda Cedar Mountain. Comment
  CAS-BOT-BC386879  Silene gallica H. L. Mason 1921-5-1 s.n. Alameda Hills back of Haywards. Comment
  SEINET11191707  Ceanothus impressus H. Mason 1951-3-31 s.n. Alameda Berkeley. Comment
  UC1014771  Dodecatheon clevelandii subsp. patulum Herbert L. Mason 1932-3-6 6806 Alameda Arroyo Mocho Canyon Mount Hamilton Range, Arroyo Mocho Canyon Comment
  UC1028678  Pentachaeta exilis Herbert L. Mason 1931-4-5 5826 Alameda road between Marsh Creek and Livermore Comment
  UC1093861  Typha angustifolia Herbert L. Mason 1937-6-17 11543 Alameda Thornhill Pool Oakland Comment
  UC1988932  Pogogyne serpylloides Herbert L. Mason 1926-4-10 2803 Alameda Arroyo Mocho, 6 miles of Livermore Comment
  UC908910  Gilia achilleifolia subsp. multicaulis Herbert L. Mason 1926-3-26 3254 Alameda Niles Canyon , Niles Canyon (Sunol) Comment
  UC909015  Gilia clivorum Herbert L. Mason 1925-3-23 1308 Alameda Sunol Sunol (on edge of bluffs) Comment
  CAS-BOT-BC412859  Aconogonon davisiae Herbert L. Mason 1940-7-30 12353 Alpine Sierra Nevada. Hills north of Carson Pass 2682 Comment
  JEPS16607  Mimulus moniliformis Herbert L. Mason 1940-7-25 12336 Alpine hills n Kit Carson Pass 2682 Comment
  UC1039619  Mimulus tilingii Herbert L. Mason 1940-7-25 12337 Alpine hills n Kit Carson Peak 2682 Comment
  UC1191111  Tsuga mertensiana Herbert L. Mason 1926-5-30 3329 Alpine Kit Carson Pass Highway #88 2621 Comment
  UC907879  Navarretia capillaris Herbert L. Mason 1940-7-25 12335 Alpine hills n Kit Carson Pass; n of Kit Carson Pass 2682 Comment
  UC912503  Erigeron breweri var. breweri Herbert L. Mason 1932-9-9 7182 Alpine near Carson Pass; Carson Meadows Comment
  POM264329  Senecio fremontii H. L. Mason 1940-7-30 12352 Alpine Hills north of Carson Pass; Sierra Nevada. 2683 Comment
  POM313041  Sagittaria cuneata H. L. Mason 1933-9-2 7285 Alpine Silver Lake, Sierra Nevada. Comment
  CAS-BOT-BC163538  Clarkia arcuata H. L. Mason 1932-4-25 6997 Amador Vorhees School, near Dry Creek Comment
  CAS-BOT-BC352919  Lasthenia glaberrima H. L. Mason 1928-5-3 4474 Amador Hills near Carbondale Comment
  POM199446  Horkelia parryi H. L. Mason 1932-4-24 6978 Amador 3 miles S of Ione Comment
  UC1039992  Viola sheltonii Herbert L. Mason Mar 14 1936-Mar 15 1936 10991 Amador 3 mi n of West Point (North Fork of Mokelumne); North Fork of Mokelumne Comment
  UC1083302  Quercus vacciniifolia Herbert L. Mason 1933-9-2 7280 Amador Silver Lake Sierra Nevada Comment
Read comments
Jun 3 2008
  UC1101536  Elatine triandra Herbert L. Mason 1933-9-2 7257 Amador Silver Lake Sierra Nevada Comment
  UC1116791  Sparganium angustifolium Herbert L. Mason 1961-8-7 15154 Amador near Carson Pass (ca 1 mi off Highway 99, meadow s of Carson Spur (Ladeaux Meadow)) 2499 Comment
  UC565512  Agoseris heterophylla var. heterophylla H. L. Mason 1932-4-24 6980 Amador 3 mi s Ione Comment
Read comments
Oct 9 2006
  UC566724  Pentachaeta alsinoides H. L. Mason 1932-4-25 6988 Amador hill above Ione Comment
  UC632737  Horkelia parryi H. L. Mason 1933-5-29 7253 Amador 2 mi s Ione 152 Comment
  UC635122  Agoseris heterophylla var. cryptopleura H. L. Mason 1932-4-25 7000 Amador on road from Ione to Michigan Bar Dry Creek; Michigan Bar Comment
  UC672172  Gamochaeta stachydifolia H. L. Mason 1932-4-25 6991 Amador hill above Ione Comment
  UC672582  Mimulus nanus var. mephiticus H. L. Mason 1933-9-2 7283 Amador Silver Lake Sierra Nevada Mountains Comment
  UC907874  Linanthus filipes Herbert L. Mason 1928-5-3 4469 Amador near Carbondale Comment
  UC912304  Oreostemma alpigenum var. andersonii Herbert L. Mason 1933-9-2 7269 Amador Silver Lake Sierra Nevada Mountains Comment
  UC912479  Polygonum minimum Herbert L. Mason 1933-9-2 7267 Amador Silver Lake Sierra Nevada Comment
  UC912689  Aspidotis californica Herbert L. Mason 1936-4-12 11075 Amador Lancha Plana Comment
  UC936204  Agrostis exarata Herbert L. Mason 1932-4-25 6998 Amador road from Ione to Michigan Bar (Voorhees School) Comment
  UC963774  Navarretia divaricata H. L. Mason 1933-9-2 7281 Amador Silver Lake Sierra Nevada Comment
  UC963789  Linanthus ciliatus Herbert L. Mason 1928-5-3 4484 Amador s of Cosumnes River Comment
  UC971816  Limnanthes douglasii subsp. rosea Charles T. Mason Jr. 1948-3-14 1132 Amador along state hwy 88 between Ione and Clements 106 Comment
  POM199571  Erigeron foliosus var. hartwegii H. L. Mason 1932-4-24 s.n. Amador Dry Creek Bridge between Ione and Latrobe Comment
  POM257250  Clarkia arcuata H. L. Mason 1932-4-25 6997 Amador Vorhees School, near Dry Creek Comment
  SEINET12519028  Amsinckia parviflora C. T. Mason 1948-1 1141 Amador About 1.5 to 2 miles north of Mokelumne River Bridge on west side of Highway 88. Comment
  UC1191147  Linanthus parviflorus Herbert L. Mason 1928-5-3 4482 Amador s of Cosumnes River (opposite Clark Creek) Comment
  UC570683  Solanum umbelliferum H. L. Mason 1928-5-3 4485 Amador opposite of Clark Creek (s bank of Cosumnes River); Cosumnes River Comment
  UC963779  Linanthus montanus Herbert L. Mason 1928-5-3 4483 Amador s of Cosumnes River (opposite Clark Creek) Comment
  CAS-BOT-BC111661  Schoenoplectus mucronatus Herbert L. Mason 1946-9-27 13135 Butte 3 miles west of Biggs. Comment
  CAS-BOT-BC190087  Crypsis schoenoides Herbert L. Mason 1945-9-19 12729 Butte Gray Lodge Game Refuge, northwest of Pennington. Comment
  CAS-BOT-BC224424  Cuscuta californica Herbert L. Mason; Verne Grant 1946-9-27 13132 Butte Butte Sink. Graylodge Game Refuge Comment
  CAS-BOT-BC273950  Leptochloa fusca subsp. fascicularis Herbert L. Mason 1945-9-19 12730 Butte Gray Lodge Game Refuge, northwest of Pennington Comment
  CAS-BOT-BC45926  Limnanthes floccosa subsp. californica Charles T. Mason, Jr. 1949-4-24 1255 Butte 8 miles N.W. of Oroville along the Oroville-Chico road Comment
  CHSC2105  Carex barbarae P. Mason 1937-5-15 Butte Fish wheel on Butte Creek. 91 Comment
  POM313036  Damasonium californicum H. L. Mason 1927-5-9 3705 Butte Sacramento Valley, 15 mi W of Oroville. Comment
  POM313213  Leptochloa fusca subsp. fascicularis H. L. Mason 1945-9-19 12730 Butte Gray Lodge Game Refuge, northwest of Pennington Comment
  RSA312628  Cuscuta californica H. L. Mason, Verne Grant 1946-9-27 13132 Butte Graylodge Game Refuge, Butte Sink Comment
  UC1099803  Sparganium eurycarpum var. eurycarpum Herbert L. Mason and Verne Grant 1946-8-14 13016 Butte Butte Sink; Sacramento Outing Club Comment
  UC1100015  Najas guadalupensis Herbert L. Mason, Verne Grant 1946-8-14 13043 Butte Butte Sink Comment
  UC1100307  Leptochloa fascicularis Herbert L. Mason 1945-9-19 12730 Butte nw Pennington; Gray Lodge Game Refuge Comment
  UC1100518  Cyperus erythrorhizos Herbert L. Mason 1945-9-19 12738 Butte Gray Lodge Game Refuge n.w. Pennington; Gray Lodge Game Refuge Comment
  UC1100546  Cyperus difformis Herbert L. Mason 1945-9-19 12737 Butte n.w. Pennington (Gray Lodge Game Refuge); Gray Lodge Game Refuge Comment
  UC1100853  Bolboschoenus maritimus Herbert L. Mason 1945-9-19 12734 Butte nw Pennington (Gray Lodge Game Refuge); , nw of Pennington Comment
  UC1101126  Polygonum persicaria Herbert L. Mason and Verne Grant 1946-9-4 13111 Butte West Gridley Rd 833 Canal Comment
  UC1101557  Elatine ambigua Herbert L. Mason 1946-8-15 13051 Butte near caretaker's house (#833 Irrigation Ditch); Butte Sink, Greylodge Game Refuge Comment
  UC1191306  Atriplex heterosperma Herbert L. Mason, Verne Grant 1946-8-14 13034 Butte canal near big pond Sacramento Outing Club (Butte Sink); canal nr big pond on Sacramento Outing Club, Butte Sink Comment
  UC1191563  Ammannia coccinea Herbert L. Mason 1945-9-19 12739 Butte n.w. Pennington (Gray Lodge Game Refuge); Gray Lodge Game Refuge Comment
  UC1191767  Ludwigia peploides subsp. peploides Herbert L. Mason and Verne Grant 1946-8-14 13019 Butte canal near big pond on Sacramento Outing Club; Butte Sink, Sacramento Outing Club Comment
  UC543770  Aristolochia californica Herbert L. Mason 1927-5-10 3717 Butte ne of Oroville (Table Mountain, Coal Creek); Table Mountain, Coal Creek Comment
  UC634851  Plagiobothrys stipitatus H. L. Mason 1927-5-9 3704 a Butte 12 mi w Oroville Comment
  UC635225  Brodiaea nana Herbert L. Mason 1927-5-9 3709 Butte 12 mi W of Oroville, flats of the Sacramento Valley Comment
  UC754224 Image available Linanthus parviflorus Herbert L. Mason 1941-4-6 12414 Butte Cherokee; ; Cherokee, Butte Co. 304 Comment
  UC935746  Sagittaria latifolia Herbert L. Mason and Verne Grant 1946-8-14 13020 Butte Butte Sink; canal near big pond on Sacramento Outing Club Comment
  UC971834  Limnanthes alba subsp. alba Charles T. Mason Jr. 1949-4-23 1252 Butte 7 mi s Oroville (in ditch along e side of State Hwy 24) Comment
  UCD99319  Persicaria hydropiperoides Herbert L. Mason; Verne Grant 1946-8-14 13027 Butte Sacramento Outing Club. Comment
  CAS-BOT-BC416976  Sedella pumila Herbert L. Mason 1941-4-6 12409 Butte Three miles S of Chico near junction of road to Paradise 91 Comment
  CAS-BOT-BC453811  Potamogeton nodosus Herbert L. Mason 1945-7-10 12640 Butte Sanford slough, Butte Sink, southwest corner of Butte County. Comment
  CAS-BOT-BC453812  Potamogeton nodosus Herbert L. Mason 1945-7-10 12640 Butte Sanford slough, Butte Sink, southwest corner of Butte County. Comment
  POM312841  Schoenoplectus glaucus H. L. Mason, Verne Grant 1946-8-7 12991 Butte Gridley road N of Butte Sink. Comment
  POM313057  Eleocharis acicularis var. acicularis H. L. Mason, Verne Grant 1945-7-19 12635 Butte Marshes along Butte Creek, north of Marysville Buttes, Grey Lodge Game Refuge, Butte Sink Comment
  POM313079  Cyperus niger var. capitatus H. L. Mason, Verne Grant 1946-9-27 13141 Butte 3 miles west of Biggs. Comment
  POM313104  Cyperus eragrostis H. L. Mason, Verne Grant 1945-7-10 12634 Butte Along Butte Creek, north of Marysville Buttes, Grey Lodge Game Refuge, southern Butte County, Butte Sink Comment
  POM313106  Cyperus difformis H. L. Mason, Verne Grant 1946-8-14 13024 Butte Canal near big pond on Sacramento Outing Club, Butte sink. Comment
  RSA435677  Limnanthes douglasii subsp. douglasii H. L. Mason 1941-4-6 12415 Butte Hills west of Cherokee. Comment
  SEINET3825672  Sparganium eurycarpum Herbert L. Mason, Verne Grant 1946-8-14 13016 Butte Canal near big pond on Sacramento Outing Club Butte Sink Comment
  SEINET6670265  Limnanthes alba var. alba C. T. Mason 1949-4-23 1252 Butte 7 miles south of Oroville, along the east side of State Highway 24 Comment
  UC1099872  Potamogeton foliosus Herbert L. Mason, Verne Grant 1945-7-10 12638 Butte Sandford Slough, sw corner of Butte County Sandford Slough Comment
  UC1100544  Cyperus difformis Herbert L. Mason and Verne Grant 1945-7-10 12636 Butte s.w. corner Sanford slough Comment
  UC1111604  Eschscholzia lobbii Herbert L. Mason 1941-4-6 12417 Butte w Cherokee 304 Comment
  UC907799  Navarretia leucocephala Herbert L. Mason 1941-4-6 12410 Butte 3 mi w Chico (near junction of Chico-Paradise Road) Comment
  UC956837  Ceratophyllum demersum Herbert L. Mason and Verne Grant 1946-8-8 12994 Butte Sanford Slough on Tule Gun Club (Butte Sink); , Sanford Slough Comment
  UCD138255  Potamogeton nodosus H. L. Mason; Verne Grant 1945-7-10 12640 Butte Stanford Slough, Butte Sink, southwest corner of county. Comment
  UCD140008  Bolboschoenus glaucus Herbert L. Mason; Verne Grant 1946-8-7 12991 Butte Gridley Road north of Butte Sink. Comment
  UCD48514  Navarretia leucocephala Herbert L. Mason 1941-4-6 12410 Butte On volcanic rubble, near junction of Chico Paradise Road, 3 miles south of Chico, Butte County, California. Comment
  CAS-BOT-BC210523  Cornus sessilis Herbert L. Mason 1935-3-14 10984 Calaveras South fork of the Mokelumne River, about three miles northeast of Glencoe Comment
  CAS-BOT-BC210524  Cornus sessilis Herbert L. Mason 1935-3-14 10984 Calaveras South fork of the Mokelumne River, about three miles northeast of Glencoe Comment
  CAS-BOT-BC46863  Arctostaphylos viscida subsp. mariposa Geo. Mason; John M. Tucker; Roman Gankin 1956-10-27 193 Calaveras 1/2 mi. n. of Mokelumne River. Located right across the river from Comanche. Comment
  CAS-BOT-BC51902  Ceanothus parvifolius Herbert L. Mason 1925-5-31 3343 Calaveras 1 mile West of Calaveras Grove Comment
  RSA13585  Cornus sessilis H. L. Mason 1935-3-14 10984 Calaveras South fork of the Mokelumne River, about three miles northeast of Glencoe. Comment
  RSA381125  Arctostaphylos viscida subsp. viscida George Mason, John M. Tucker, Roman Gankin, C. T. Mason 1956-10-27 193 Calaveras 1/2 mi. N of Mokolumne River behind high cliffs. Located right across the river from Comanche in Calaveras Co. Comment
Read comments
Jan 10 2014
  UC1076527  Lupinus albifrons Herbert L. Mason 1936-3-14 10992 Calaveras road to Murphys from Indian Creek (road from Indian Creek); road from Indian Creek to Murphys Comment
  UC1076529  Montia linearis Herbert L. Mason 1936-4-11 11059 Calaveras Creek s of Sheep Ranch (San Antonio Creek); San Antonio Creek Comment
  UC1081518  Jepsonia heterandra Herbert L. Mason 1936-3-14 10979 Calaveras 2 mi e Mokelumne Hill Comment
  UC1081519  Saxifraga californica Herbert L. Mason 1936-3-14 10969 Calaveras 5 mi s of San Andreas Comment
  UC581539  Viola lobata subsp. lobata Herbert L. Mason 1926-5-31 3351 Calaveras Calaveras Big Trees Comment
  UC632785  Triphysaria pusilla H. L. Mason 1936-4-9 11045 Calaveras Calaveras Big Trees Road; Sierra Nevada, Calaveras Big Trees road 990 Comment
  UC632825  Salvia sonomensis H. L. Mason 1936-3-14 10993 Calaveras road from Indian Creek to Murphy's Comment
  UC912690  Cystopteris fragilis Herbert L. Mason 1936-3-14 10996 Calaveras S of Sheep Ranch; San Antonio Creek Comment
  UC971902  Limnanthes striata Charles T. Mason Jr. 1948-4-25 1155 Calaveras 3.4 mi n Altaville (on State Hwy 49) 304 Comment
  UC971903  Limnanthes striata Charles T. Mason Jr. 1948-4-25 1156 Calaveras 1.4 mi w Altaville (on n side of State Hwy 4) 457 Comment
  CAS-BOT-BC400740  Asarum lemmonii H. L. Mason 1930-7-1 5705 Calaveras Near Hermit Springs, Blue Creek, a tributary of the North Fork of the Mokelumne River, Sierra Nevada Mountains Comment
  CAS-BOT-BC521572  Triteleia hyacinthina H. L. Mason 1930-4-1 5556 Calaveras Hills west of San Andreas Comment
  UC1093949  Lupinus benthamii Herbert L. Mason 1929-4-7 5190 Calaveras hills above Sonora and Angels Camp; above Sonora and Angels Camp Comment
  UC1100159  Lilaea scilloides Herbert L. Mason 1929-4-7 5199 Calaveras 3 mi above Valley Springs Comment
  UC570750  Callitriche longipedunculata H. L. Mason 1929-4-7 5193 Calaveras 3 miles above Valley Spring Comment
  UC570777  Callitriche longipedunculata H. L. Mason 1929-4-7 5198 Calaveras 3 miles above Valley Springs Comment
  UC571152  Parvisedum pumilum H. L. Mason 1929-4-7 5200 Calaveras 3 mi above Valley Spring Comment
  UC632836  Lasthenia californica subsp. californica H. L. Mason 1936-4-10 11051 Calaveras field s Angels Camp Comment
  UC672548  Gratiola ebracteata H. L. Mason 1929-4-7 5197 Calaveras three mi above Valley Spring; above Valley Spring Comment
  UCD116905  Tuberaria guttata H. L. Mason 1936-4-11 11078 Calaveras Calaveras County. Comment
  UCD117259  Cornus sessilis Herbert L. Mason 1935-3-14 10984 Calaveras South fork of the Mokelumne River, about three miles northeast of Glencoe. Comment
  CAS-BOT-BC112754  Eleocharis macrostachya Herbert L. Mason; Verne Grant 1946-8-6 12956 -B Colusa Pond on Colusa/Marysville Hwy, 4 mi S of Colusa, W side of Sacramento River. Comment
  CAS-BOT-BC190086  Crypsis schoenoides Herbert L. Mason 1945-7-11 12642 Colusa Near Butte Creek. Butte Lodgd Outing Club, three miles above Colusa. Comment
  CAS-BOT-BC208995  Digitaria sanguinalis Herbert L. Mason 1945-9-19 12722 Colusa Below causeway over Butte Sink spillway, east bank of Sacramento River, 1 mile north of Colusa. Comment
  CAS-BOT-BC291140  Eclipta prostrata Herbert L. Mason 1945-9-19 12725 Colusa Below causway over Butte Sink spillway, east bank of Sacramento River, 1 mile north of Colusa Comment
  CAS-BOT-BC417046  Sedella pentandra Herbert L. Mason 1953-5-4 s.n. Colusa Little Stony Creek road 0.25 miles above junction of Little Stony Creek and Trout Creek,Inner North Coast Ranges 609 Comment
  CAS-BOT-BC83275  Myosurus minimus Herbert L. Mason 1953-4-5 14508 Colusa Three miles east of Maxwell. Comment
  POM312312  Hibiscus H. L. Mason 1945-7-11 12649 Colusa Alkali plains near Butte Creek; Butte Lodge Outing Club, three miles above Colusa Comment
  POM313168  Crypsis vaginiflora H. L. Mason 1945-7-11 12643 Colusa Near Butte creek; Butte Lodge Outing Club, 3 miles above Colusa. Comment
  POM313202  Panicum dichotomiflorum H. L. Mason 1945-9-19 12720 Colusa Below caus[e]way over Butte Sink spillway, East bank of Sacramento River, 1 mile north of Colusa. Comment
  SACT002290  Sorghum halepense Herbert Mason 1945-9-19 Colusa Below causeway over Butte Sink spillway, east bank of Sacramento River , 1 mile north of Colusa. Comment
  SEINET200142 Image available Eragrostis hypnoides Herbert L. Mason 1945-9-19 12717 Colusa Below causway over Butte Sink spillway east bank of Sacramento River 1 mile above Colusa Comment
  UC1027193  Parvisedum pentandrum Herbert L. Mason 1953-5-4 Colusa Little Stony Creek Road 0.25 mi above junction of Little Stony Creek and Trout Creek (Inner North Coast Ranges); , Little Stony Creek Road 609 Comment
  UC1100248  Eragrostis hypnoides Herbert L. Mason 1945-9-19 12717 Colusa 1 mi above Colusa (below causeway over Butte Sink spillway); e bank of Sacramento River, Butte Sink spillway Comment
  UC1100519  Cyperus erythrorhizos Herbert L. Mason 1945-9-19 12724 Colusa 1 mi. n. Colusa (e. bank Sacramento R., below causeway over Butte Sink spillway,); Sacramento R. Comment
  UC1100534  Cyperus eragrostis Herbert L. Mason and Verne Grant 1946-8-7 12982 Colusa 8 mi. n. Colusa (Butte Sink); Butte Sink Comment
  UC1100677  Scirpus acutus var. occidentalis Herbert L. Mason, Verne Grant 1946-8-7 12987 Colusa eight mi n Colusa (Butte Sink); , n of Colusa Comment
  UC1100922  Scirpus maritimus Herbert L. Mason, Verne Grant 1946-8-6 12975 Colusa pond 2.7 mi n of Colusa between Sacramento River and Butte Creek; Butte Sink, n of Colusa betw Sacramento River and Butte Cree Comment
  UC1101274  Lemna turionifera Herbert L. Mason, Verne Grant 1946-8-6 12966 Colusa 4 mi s of Colusa (w side of Sacramento River, on Colusa-Marysville Highway); Sacramento River Comment
  UC1101350  Myosurus minimus Herbert L. Mason 1953-4-5 14509 Colusa 3 mi e of Maxwell Comment
  UC1178819  Psilocarphus brevissimus var. brevissimus Herbert L. Mason 1953-4-5 14507 Colusa about 3 mi e Maxwell (near bend in road by bench mark) Comment
  UC1179058  Salix exigua var. hindsiana Herbert L. Mason 1947-3-29 13159 Colusa ca. 3 mi n.e. Colusa (Butte Sink, along Butte Creek) Comment
  UC1179059  Salix exigua var. hindsiana Herbert L. Mason 1947-3-29 13157 Colusa ca. 3 mi n.e. Colusa (along Butte Creek, Butte Sink) Comment
  UC1191547  Lythrum hyssopifolia Herbert L. Mason, Verne Grant 1946-8-7 12986 Colusa 8 mi n of colusa (Butte Sink); Butte Sink Comment
  UC1191660  Cuscuta indecora Herbert L. Mason and Verne Grant 1946-8-6 12974 Colusa 2.7 mi n Colusa (between Sacramento River and Butte Creek); Butte Sink Comment
  UC1192040  Downingia insignis Herbert L. Mason 1953-4-5 14506 Colusa 3 mi e Maxwell Comment
  UC908879  Navarretia heterandra Herbert L. Mason 1946-5-30 12816 Colusa near Eppersons; Bear Valley Comment
  UC935750  Sagittaria montevidensis subsp. calycina Herbert L. Mason and Verne Grant 1946-8-6 12961 Colusa on Colusa - Marysville Highway four mi s Colusa (w side of Sacramento River); w side of Sacramento River Comment
  UCD131244  Eclipta prostrata H. L. Mason 1945-9-19 12725 Colusa 1 mile N of Colusa. Below causeway over Butte Sink spillway, E bank of Sacramento River. Comment
  OBI12550  Hesperolinon californicum Herbert L. Mason 1946-5-31 12815 Colusa Inner North Coast Ranges. One mi E of Lake County line, Bartlett Springs to Williams Rd, W Comment
  POM310950  Leptosiphon bolanderi H. L. Mason 1941-4-5 12404 Colusa Three miles south of Stonyford Comment
  POM312984  Najas guadalupensis H. L. Mason, Verne Grant 1946-8-15 13008 Colusa 2 miles west of Colusa on Williams highway by bridge Comment
  POM313034  Alisma triviale H. L. Mason, Verne Grant 1946-9-5 13119 Colusa Road to Lake Co, 1.6 miles W of Williams. Comment
  UCD96586  Myosurus minimus H. L. Mason 1953-4-5 14509 Colusa Three miles east of Maxwell. Comment
  UCD97576  Bassia hyssopifolia Herbert L. Mason 1946-8-6 12958 Colusa On Colusa-Marysville Highway, four miles south of Colusa, west side of Sacramento River. Comment
  CAS-BOT-BC154324  Phacelia phacelioides H. L. Mason 1938-5-3 11749 Contra Costa Trail between Juniper Camp and Deer Flat, Mount Diablo Comment
  CAS-BOT-BC167442  Hesperolinon breweri Herbert L. Mason 1936-6-14 s.n. Contra Costa Ridge running south of Mount Diablo, head of Marsh Creek Comment
  CAS-BOT-BC41526  Erysimum capitatum H. L. Mason 1933-4-9 7189 Contra Costa East of Antioch along the San Joaquin River. 12 Comment
  CAS-BOT-BC67405  Tropidocarpum gracile H. L. Mason 1932-3-20 6842 Contra Costa Antioch. Comment
  JEPS19479  Orobanche vallicola Herbert L. Mason 1929-9-21 5432 Contra Costa 3 mi. above Clayton (Marsh Creek Rd.) Comment
  JEPS21206  Dodecatheon clevelandii subsp. patulum Herbert L. Mason 1925-2-28 1260 Contra Costa 1/2 mi e Rodeo; e of Rodeo Comment
  JEPS40167  Ptelea crenulata H. L. Mason 1928-3-31 Contra Costa Mt. Diablo Comment
  JEPS40168  Ptelea crenulata H. L. Mason 1928-3-31 Contra Costa Mt. Diablo Comment
  JEPS43337  Claytonia exigua subsp. exigua H. L. Mason 1931-4-5 Contra Costa se of Mt. Diablo (on road from Marsh Creek to Livermore); Upper Marsh Creek Comment
  UC1028683  Minuartia californica Herbert L. Mason 1932-3-20 6849 Contra Costa Antioch Sand Hills Comment
  UC1039519  Galium aparine Herbert L. Mason 1932-3-20 6840 Contra Costa Antioch sand hills Comment
  UC1039536  Dodecatheon clevelandii subsp. patulum Herbert L. Mason 1929-3-15 5044 Contra Costa Nortonville Comment
  UC1055936  Pilularia americana Herbert L. Mason 1952-4-14 14261 Contra Costa 3.5 mi s Byron Comment
  UC1076301  Orobanche fasciculata Herbert L. Mason 1926-5-7 2704 Contra Costa Near Summit of Mount Diablo. Comment
  UC1076412  Symphoricarpos mollis Herbert L. Mason 1929-5-7 5264 Contra Costa Moraga Ridge Comment
  UC1076516  Gutierrezia californica H. L. Mason 1929-9-21 5435 Contra Costa 3 mi above Clayton (Marsh Creek road) Comment
  UC1077124  Pilularia americana Herbert L. Mason 1932-3-20 6851 Contra Costa Deer Valley Comment
  UC1093922  Alnus rhombifolia Herbert L. Mason 1924-11-23 1159 Contra Costa Las Trampas Ridge; via Cashion Comment
  UC1093927  Centromadia fitchii Herbert L. Mason 1929-9-21 5430 Contra Costa 3 mi above Clayton (Marsh Creek Road) Comment
  UC1099993  Zannichellia palustris Herbert L. Mason 1929-2-10 Contra Costa Nortonville Comment
  UC1109005  Zannichellia palustris H. L. Mason October 1929 Contra Costa Nortonville Comment
  UC1111024  Dodecatheon hendersonii Herbert L. Mason 1926-3-7 2700 Contra Costa Mt. Diablo Comment
  UC1178022  Lythrum californicum Herbert L. Mason 1955-7-14 14636 Contra Costa 1/2 mi e of Antioch Bridge Comment
  UC552339  Psilocarphus oregonus Lucile R. Mason 1935-4-9 Contra Costa Marsh Creek Comment
  UC555354  Trifolium depauperatum var. truncatum H. L. Mason 1929-4-25 5208 Contra Costa Marsh Creek Rd Comment
  UC555606  Trifolium macraei H. L. Mason 1928-4-13 4304 Contra Costa Richmond waterfront Comment
  UC555617  Trifolium albopurpureum var. albopurpureum H. L. Mason 1929-5-7 5261 Contra Costa Moraga Ridge Comment
  UC565499  Microseris douglasii subsp. douglasii H. L. Mason 1929-3-31 5142 Contra Costa Briones Valley Comment
  UC565564  Chaenactis glabriuscula var. glabriuscula H. L. Mason 1929-3-31 5157 Contra Costa Antioch, sand dikes along San Joaquin River San Joaquin River, Antioch Comment
  UC566856  Sanicula crassicaulis H. L. Mason 1928-4-13 4305 Contra Costa Richmond Waterfront Comment
  UC570718  Trichostema lanceolatum Herbert L. Mason 1923-11-12 854 Contra Costa Mount Diablo, middle slopes Comment
  UC570944  Saxifraga californica Herbert L. Mason 1926-3-7 2702 Contra Costa Mount Diablo Comment
  UC571100  Ptelea crenulata H. L. Mason 1928-4-1 4273 Contra Costa hills n Mount Diablo (canyon back of Pittsburg) Comment
  UC573059  Pectocarya pusilla H. L. Mason 1929-4-25 5210 Contra Costa Briones Rd to Antioch Comment
  UC592125  Nemophila heterophylla H. L. Mason 1929-3-29 5125 Contra Costa Mount Diablo 762 Comment
  UC634790  Garrya flavescens H. L. Mason 1926-3-7 2711 Contra Costa Mount Diablo Comment
  UC634921  Salvia mellifera H. L. Mason 1925-3-10 1291 Contra Costa Mount Diablo Comment
  UC635006  Eriogonum luteolum var. luteolum H. L. Mason 1929-9-21 5434 Contra Costa 3 mi above, along Marsh Creek road Clayton Comment
  UC635291  Camissonia campestris subsp. campestris H. L. Mason 1931-4-5 5820 Contra Costa Antioch sandhills Comment
  UC635349  Delphinium H. L. Mason 1925-3-10 1301 Contra Costa Mount Diablo; along lower canyon slopes Comment
  UC635400  Camissoniopsis intermedia H. L. Mason 1928-4-29 4436 Contra Costa Sycamore Canyon Mount Diablo (s slope of mt.) Comment
  UC635408  Camissoniopsis micrantha H. L. Mason 1932-3-20 6850 Contra Costa sand hills near Antioch Comment
  UC672198  Gamochaeta ustulata H. L. Mason 1928-4-12 4302 Contra Costa Richmond waterfront Comment
  UC672340  Phacelia douglasii Herbert L. Mason 1929-3-31 5161 Contra Costa dunes along river near Antioch; San Joaquin River Comment
  UC672384  Phacelia imbricata Herbert L. Mason 1928-4-26 4388 Contra Costa slopes to n of Lake Temescal; Berkeley Hills Comment
  UC672410  Phacelia ciliata var. ciliata Herbert L. Mason 1929-3-31 5139 Contra Costa Briones Road Hills northeast of Mount Diablo Comment
  UC672426  Phacelia distans Herbert L. Mason 1929-3-29 5122 Contra Costa Mount Diablo 762 Comment
  UC673302  Tropidocarpum gracile H. L. Mason 1932-3-20 6842 Contra Costa Antioch sand hills Comment
  UC673358  Dodecatheon clevelandii subsp. patulum Herbert L. Mason 1925-2-28 1260 Contra Costa 1/2 mi e Rodeo; e of Rodeo Comment
  UC673401  Dodecatheon hendersonii Herbert L. Mason 1929-3-15 5047 Contra Costa s Nortonville; s of Nortonville Comment
  UC673440  Castilleja exserta subsp. exserta H. L. Mason 1929-3-15 5059 Contra Costa about 5 mi from Brentwood (along Marsh Creek Road) Comment
  UC673456  Castilleja exserta subsp. exserta H. L. Mason 1928-3-4 4168 Contra Costa Shell Ridge Comment
  UC673518  Erysimum capitatum var. capitatum H. L. Mason 1931-4-5 5822 Contra Costa Antioch sand hills Comment
  UC908902  Gilia achilleifolia subsp. multicaulis Herbert L. Mason 1928-4-15 4357 Contra Costa top of Morago Ridge Morago Ridge Comment
  UC912220  Bidens frondosa Herbert L. Mason 1929-9-21 5446 Contra Costa 2.6 mi ne of Byron (Borden Highway); Borden Highway Comment
  UC912272  Centromadia pungens subsp. pungens H. L. Mason 1929-9-21 5438 Contra Costa Marsh Creek Road Comment
  UC912309  Gutierrezia californica Herbert L. Mason 1929-9-21 5435 Contra Costa 3 mi above Clayton (Marsh Creek Road) Comment
  UC912326  Holocarpha virgata subsp. virgata Herbert L. Mason 1929-9-21 5431 Contra Costa 3 mi above Clayton (summit of grade, Marsh Creek Road) Comment
  UC912575  Layia glandulosa Herbert L. Mason 1929-3-31 5155 Contra Costa at Antioch (along Sacramento River); along Sacramento River Comment
  UC912601  Lagophylla ramosissima Herbert L. Mason 1929-9-21 5432 a Contra Costa Marsh Creek road 3 mi above Clayton (summit of grade) Comment
  CAS-BOT-BC178471  Astragalus gambelianus H. L. Mason 1928-4-15 4345 Contra Costa East-facing grassy slope, Moraga Ridge Comment
  CAS-BOT-BC178472  Astragalus gambelianus H. L. Mason 1928-4-26 4380 Contra Costa Berkely - Oakland Hills Comment
  CAS-BOT-BC454204  Zannichellia palustris Herbert L. Mason 1929-2-10 s.n. Contra Costa Nortonville Comment
  POM256513  Phacelia breweri H. L. Mason 1938-5-3 11750 Contra Costa Trail between Juniper Camp and Deer Flat, Mount Diablo. Comment
  POM257264  Camissonia campestris subsp. campestris H. L. Mason 1929-3-31 5153 Contra Costa Along San Joaquin River, Antioch. Comment
  POM269205  Ranunculus hebecarpus H. L. Mason 1929-3-29 5126 Contra Costa Marsh Creek Road, 2 miles above Clayton Comment
  SEINET7881864 Image available Baeria fremontii Herbert L. Mason 1952-1 14260 Contra Costa 3.5 miles south of Byron Comment
  UC573064  Pectocarya penicillata H. L. Mason 5133 Contra Costa 2 mi above Clayton (Marsh Creek Rd) Comment
  UC635344  Delphinium patens H. L. Mason 1929-3-29 5136 Contra Costa Marsh Creek Rd 2 mi above Clayton Comment
  UCD102995  Lythrum californicum Herbert L. Mason 1955-7-14 14636 Contra Costa 1/2 mile E of Antioch Bridge. Comment
  UCD116680  Malva sylvestris Herbert L. Mason 1952-6-10 s.n. Contra Costa Waste land near Dwinelle Hall, University of California, Berkeley. Comment
  UCD137784  Pentagramma triangularis Herbert L. Mason 1924-11-23 1163 Contra Costa Las Trampas Ridge via Cashion. Comment
  UCD97100  Ranunculus sceleratus H. L. Mason 1937-6-12 11547 Contra Costa 0.5 mile from the south end of Borden Highway and about 1.5 miles west of Byron. Comment
  CAS-BOT-BC420343  Chrysosplenium glechomifolium H. L. Mason 1929-5-10 5286 Del Norte just N of Crescent City Comment
  UC570863  Mitella caulescens H. L. Mason 1929-5-10 5285 b Del Norte 10 mi s Crescent City Comment
Read comments
Jan 2 2012
  UC672328  Hydrophyllum tenuipes H. L. Mason 1929-5-10 5284 Del Norte 10 mi s Crescent City Comment
  CAS-BOT-BC154398  Phacelia ramosissima var. eremophila H. L. Mason 1939-7-18 12174 El Dorado north side of Luther Pass, one mile west of Grass Lake Meadow 2346 Comment
  CAS-BOT-BC157359  Comarum palustre Herbert L. Mason 1940-7-25 12331 El Dorado Grass Lake, Luther Pass 2377 Comment
  CAS-BOT-BC302492  Gnaphalium palustre H. L. Mason 1933-5-29 7245 El Dorado Shingle Springs Comment
  CAS-BOT-BC452077  Potamogeton alpinus Herbert L. Mason 1929-10-4 5467 El Dorado West side Lake Tahoe above Emerald Bay, 14 miles from Tahoe City Comment
  CAS-BOT-BC77257  Antennaria microphylla H. L. Mason 1939-7-8 12162 El Dorado Northeast end of Fallen Leaf Lake 1950 Comment
  HSC17131  Navarretia prolifera subsp. lutea H. L. Mason 1942-6-24 12552 El Dorado Ridge N of Smith's Flat, 4 mi. E of Placerville Comment
  POM310913  Navarretia prolifera subsp. lutea H. L. Mason 1942-6-24 12552 El Dorado Ridge north of Smith's Flat, 4 miles east of Placerville Comment
  RSA64472  Arctostaphylos nissenana H. L. Mason 1945-02 s.n. El Dorado Placerville Comment
Read comments
Jun 22 2012
  SEINET2030007 Image available Antennaria rosea H. L. Mason 1939-7-8 12162 El Dorado Northeast end of Fallen Leaf Lake 1951 Comment
  UC1039603  Mimulus tilingii Herbert L. Mason 1940-7-25 12332 El Dorado 10.5 mi s Lake Tahoe (e El Dorado Co.); Grass Lake 2377 Comment
  UC1077118  Botrychium multifidum Herbert L. Mason 1926-5-30 3311 El Dorado Eagle Creek Lake Tahoe drainage Comment
  UC1085298  Parvisedum pumilum Herbert L. Mason 1957-5-1 El Dorado near Garden Valley (Georgetown); Georgetown Comment
  UC1191148  Linanthus parviflorus Herbert L. Mason 1932-4-25 7007 El Dorado near Latrobe Comment
  UC1191149  Linanthus parviflorus Herbert L. Mason 1928-5-4 4482 El Dorado 4 mi n Shingle Springs; Green Valley Comment
  UC555352  Trifolium depauperatum var. amplectens H. L. Mason 1928-5-4 4501 El Dorado Shingle Springs Comment
  UC555693  Prunus virginiana var. demissa H. L. Mason 1928-5-4 4526 El Dorado Hastings Creek near Pilot Hill; Hastings Creek Comment
  UC555699  Purshia tridentata var. tridentata H. L. Mason 1926-5-30 3321 El Dorado near road to Fallen Leaf Lake Comment
  UC571021  Ageratina occidentalis H. L. Mason 1928-10-4 5464 El Dorado 14 mi from; w side of Lake Tahoe above Emerald Bay; Tahoe City Comment
  UC571153  Parvisedum pumilum H. L. Mason 1928-5-4 4506 El Dorado Greene Valley 4 mi n of Shingle Springs; Greene Valley Comment
  UC592159  Streptanthus tortuosus var. orbiculatus Herbert L. Mason 1926-5-30 3322 El Dorado near road to Fallen Leaf Lake; Lake Tahoe Comment
  UC634811  Ceanothus lemmonii H. L. Mason 1928-5-4 4496 El Dorado 3 mi n Latrobe (Dugars) Comment
  UC640580  Silene californica H. L. Mason 1928-5-4 4530 El Dorado Hastings Creek near Pilot Hill (Sierra Nevada); , Hastings Creek near Pilot Hill Comment
  UC672082  Smilacina stellata Herbert L. Mason 1926-5-30 3308 a El Dorado hill slope back of Emerald Bay (above falls); Lake Tahoe Comment
  UC672083  Smilacina racemosa Herbert L. Mason 1926-5-30 3305 El Dorado hill slope back of Emerald Bay (above falls); Lake Tahoe Comment
  UC672250  Micropus californicus var. californicus Herbert L. Mason 1932-4-25 7016 El Dorado Pilot Hill Sierra Nevada foothills Comment
  UC673473  Castilleja lineariloba H. L. Mason 1932-4-25 7018 El Dorado on road between Coloma and Auburn (Pilot Hill); Pilot Hill Comment
  UC907872  Linanthus Herbert L. Mason 1932-4-25 8024 El Dorado Shingle Springs Comment
  UC908208  Navarretia intertexta H. L. Mason 1926-5-28 3260 El Dorado between Shingle Springs and Coloma (Rose Springs (Eggers), Sierra Nevada foothills); Sierra Nevada, Rose Springs 396 Comment
  UC908594  Gilia tricolor subsp. diffusa Herbert L. Mason 1928-5-4 4505 El Dorado four mi n Shingle Springs; n of Shingle Springs Comment
  UC912387  Ceanothus palmeri Herbert L. Mason 1928-5-3 4488 El Dorado at mouth of Clark Creek near bridge Cosumnes River; Cosumnes River at mouth of Clark Creek Comment
  UC912518  Balsamorhiza deltoidea Herbert L. Mason 1932-4-25 7019 El Dorado on road between Coloma and Auburn Coloma; Pilot Hill Comment
  UC912605  Meconella californica Herbert L. Mason 1928-5-4 4524 El Dorado Granite Canyon Comment
  UCD52669  Arctostaphylos nevadensis George Mason; Roman Gankin 1958-5-25 301 El Dorado 50 yards north of U.S. Highway 50. Comment
  CAS-BOT-BC466421  Allium campanulatum H. L. Mason 1926-6-30 3312 El Dorado Back of Emerald Bay, Lake Tahoe Comment
  POM264342  Allophyllum violaceum H. L. Mason 1941-7-16 12487 El Dorado Cold Creek, south of Lake Tahoe 2287 Comment
  SEINET10542304  Potentilla palustris Herbert L. Mason 1940-7-25 Mason 12331 El Dorado Sphagnum bog in pinus jeffreyi and abies magnifica forest, grass lake, luther Pass 2377 Comment
  UC555429  Trifolium albopurpureum var. albopurpureum H. L. Mason 1928-5-3 4481 El Dorado slopes to s Cosumnes River (opposite Clark Creek) Comment
  UC566839  Sanicula tuberosa Herbert L. Mason 1926-5-30 3325 El Dorado along road from Tahoe to Kit Carson Pass Kit Carson Pass 1889 Comment
  UC635343  Delphinium gracilentum H. L. Mason 1928-5-3 4487 El Dorado mouth of creek near bridge of Cosumnes River (slopes); Clark Creek Comment
  UC673620  Odontostomum hartwegii Herbert L. Mason 1928-5-4 4517 El Dorado between Green Valley and Eggars Comment
  UC971833  Limnanthes alba subsp. alba Charles T. Mason Jr. 1948-5-14 1191 El Dorado along w side of Southern Pacific Railroad tracks 1/2 mi n Whitney Station (about 3 mi e of Lincoln along US Hwy 99E) 45 Comment
  UCD48480  Navarretia intertexta Herbert L. Mason 1926-5-28 3260 El Dorado Rose Springs (Eggers), between Shingle Springs and Coloma, Sierra Nevada foothills, El Dorado County. 396 Comment
  CAS-BOT-BC349652  Monolopia stricta Herbert Mason 1940-3-24 12252 Fresno Four miles south of Firebaugh Comment
  UC1191436  Myosurus minimus Herbert L. Mason 1953-4-2 14502 Fresno 5 mi s of Kerman Comment
  UCD141137  Cyperus rotundus Herbert L. Mason; S. Galen Smith 1948-8-18 8349 Fresno just west of Stratford. Comment
  CAS-BOT-BC209043  Digitaria sanguinalis Herbert L. Mason; S. Galen Smith 1948-7-28 8229 Fresno San Joaquin River at Firebaugh Comment
  POM311162  Phalaris paradoxa H. L. Mason 1940-5-3 12252 Fresno Lyon & Hoag Ranch, 9 mi SE of South Dos Palos 30 Comment
  SEINET11671688  Phalaris paradoxa H. L. Mason 1940-1 12252 Fresno San Joaquin Valley, Lyon and Hoag Ranch, 9 mi SE of South Dos Palos 30 Comment
  SEINET197653 Image available Phalaris paradoxa H. L. Mason 1940-5-3 12252 Fresno San Joaquin Valley Lyon & Hoag Ranch 9 mi SE of S Dos Palos 30 Comment
  UC909029  Gilia clivorum Herbert L. Mason 1938-4-14 11700 Fresno outskirts w South Mendota; w of South Mendota Comment
  UC964734  Phalaris paradoxa Herbert L. Mason 1940-5-3 12252 Fresno Lyon and Hoag Ranch, nine miles southeast of South Dos Palos Comment
  UCD134583  Monolopia stricta Herbert L. Mason 1940-5-24 12252 Fresno 4 miles south of Firebaugh. Comment
  CAS-BOT-BC176231  Hesperolinon disjunctum Herbert L. Mason 1952-6-19 14309 Glenn Black Diamond Ridge, Mendocino National Forest 609 Comment
  SD51683  Hesperolinon disjunctum Herbert L. Mason 1952-6-19 14304 Glenn Black Diamond Ridge, Mendocino National Forest. 822 Comment
  CAS-BOT-BC235884  Keckiella corymbosa H. L. Mason 1928-7-14 4900 Humboldt East Fork of the Eel River near Garberville Comment
  UC1076088  Lithocarpus densiflorus Herbert L. Mason 1928-7-14 4899 Humboldt East Fork of Eel River East Fork of Eel River, Gaberville; Gaberville Comment
  UC1076384  Cupressus lawsoniana H. L. Mason 1932-7-21 7111 Humboldt on road Arcata to Weaverville (e slope of Southfork Mts.); Southfork Mts. Comment
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Jul 25 2018
  UC1083222  Quercus vacciniifolia Herbert L. Mason 1932-7-21 7108 Humboldt on road from Arcata to Weaverville (e slope of Southfork Mountains); Southfork Mountains Comment
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Oct 6 2006
  UC570808  Polygala cornuta var. cornuta H. L. Mason 1932-7-21 7110 Humboldt on road from Arcata to Weaverville; east slope of Southfork Mountains Comment
  UC971807  Limnanthes douglasii subsp. nivea Charles T. Mason Jr. 1949-4-29 1283 Humboldt 3.7 mi n Blocksburg (along road from Harris to Bridgeville) Comment
  UC1093646  Ephedra trifurca Herbert L. Mason 1957-3-31 14683 Imperial near Yuma (desert w of the sand hills) Comment
  SD47962  Phacelia crenulata var. crenulata Herbert L. Mason 1940-3-22 12241 Inyo Titus Canyon, Grapevine Mountains, Death Valley National Monument. Comment
  UC1093889  Salvia funerea Herbert L. Mason 1940-3-22 12242 Inyo Titus Canyon; Death Valley National Monument, Grapevine Mts. Comment
  UC1111569  Arenaria macradenia var. macradenia Herbert L. Mason 1940-3-22 12238 Inyo Titus Canyon Death Valley National Monument, Grapevine Mountains Comment
  RSA0104126  Eriastrum densifolium subsp. austromontanum H. L. Mason 1948-9-3 13631 a Inyo Onion Valley Comment
  SEINET5345287  Atriplex hymenelytra E. W. Mason, A. Tiehm 1976-4-30 s.n. Inyo East of SR190 about 100 yards, at a point 9.2 miles north of its junction with SR127. 884 Comment
  UC1076418  Phacelia pachyphylla Herbert L. Mason 1955-4-30 8280 Inyo Poison Canyon Comment
  UC908523  Gilia cana subsp. triceps Herbert L. Mason 1934-3-30 8023 Inyo w slope Panamint Mountains , w slope Panamint Mountains (Mohave Desert) Comment
  UC908524  Gilia cana subsp. speciformis Herbert L. Mason 1934-3-29 8019 Inyo one mi e Darwin; Mohave Desert, e of Darwin Comment
  CAS-BOT-BC121950  Delphinium recurvatum Herbert L. Mason 1935-3-30 8242 Kern Four miles west of Bakersfield Comment
  CAS-BOT-BC202618  Aesculus californica H. L. Mason 1929-6-2 5358 Kern Tejon Pass, Tehachapi Mountains, 30 miles from Bakersfield Comment
  CAS-BOT-BC226218  Gilia interior Herbert L. Mason 1935-4-20 6268 Kern Hobo Hot Springs, Kern River Canyon Comment
  CAS-BOT-BC226220  Gilia interior Herbert L. Mason 1938-4-17 11732 Kern Three and one-half miles east of Hobo Hot Springs, Kern River Canyon Comment
  CAS-BOT-BC226363  Gilia latiflora subsp. elongata Herbert L. Mason 1935-3-29 8202 Kern Two miles west of Randsburg, Mohave [Mojave] Desert Comment
  CAS-BOT-BC255311  Chorizanthe xanti var. xanti H. L. Mason 1929-6-2 5354 Kern Tejon Pass, 30 miles from Bakersfield, Tehachapi Mountains Comment
  CAS-BOT-BC7358  Monolopia stricta Herbert Louis Mason 1935-5-2 9314 Kern 2 miles W of Los Hills, northwestern Kern County Comment
  SBBG114013  Caulanthus californicus H. L. Mason 1935-5-2 10001 Kern 1 mi E of Lost Hills Comment
  SD44506  Leptosiphon liniflorus Herbert L. Mason 1935-5-2 8386 Kern Plains east of Bakersfield. Comment
  SD45388  Gilia latiflora H. L. Mason 1935-3-29 8211 Kern Red Rock Canyon. Comment
  SD47976  Asclepias californica Herbert L. Mason 1935-4-30 6263 Kern Hobo Hot Springs, Kern River Canyon. Comment
  SEINET199118  Mentzelia pectinata Herbert Mason 1952-4-6 14205 Kern South of Belridge. Comment
  UC1039634  Mucronea perfoliata Herbert L. Mason 1935-4-30 6265 Kern Hobo Hot Springs Kern River Canyon Comment
  UC1039636  Fremontodendron californicum Herbert L. Mason 1935-4-30 6274 Kern Onyx Comment
  UC1051446 Image available Mentzelia eremophila Herbert L. Mason 1952-4-6 14205 Kern South of Belridge Comment
Read comments
Apr 16 2019
  UC1056302  Vulpia octoflora var. hirtella Herbert L. Mason 1935-4-30 6276 Kern Onyx Comment
  UC1076236  Lupinus microcarpus var. horizontalis H. L. Mason 1930-4-20 5561 Kern Caliente Creek; Tehachapi Mts., Caliente Creek Comment
  UC1199842  Ephedra viridis Herbert L. Mason 1935-5-2 8384 Kern Piute Piute (s of Sequoia National Forest) Comment
  UC1201231  Cupressus arizonica subsp. nevadensis Herbert L. Mason 1956-3-29 14662 Kern n-facing slopes s Bodfish; Piute Mountains 1066 Comment
  UC545815  Monolopia congdonii Herbert L. Mason 1935-4-30 9315 Kern 5 mi w of Bakersfield Comment
  UC545817  Caulanthus californicus Herbert L. Mason 1935-5-2 10001 Kern one mi e Lost Hills (nw Kern County); e of Lost Hills Comment
  UC555651  Cercocarpus betuloides var. betuloides H. L. Mason 1929-6-2 5359 Kern Tejon Pass 30 mi from Bakersfield; Tehachapi Mountains, Tejon Pass Comment
  UC565488  Monolopia lanceolata H. L. Mason 1932-4-3 6907 Kern between Blackwells Corner and Lost Hills Comment
  UC565525  Malacothrix glabrata H. L. Mason 1932-4-2 6899 Kern 3 mi w Muroc; Mojave Desert Comment
  UC565552  Malacothrix coulteri H. L. Mason 1932-4-3 6909 Kern near Blackwells Corners Comment
  UC566715  Lasthenia gracilis Herbert L. Mason 1932-4-2 6898 Kern 3 mi w Muroc; Mojave Desert Comment
  UC566770  Coreopsis californica var. californica Herbert L. Mason 1932-4-2 6906 Kern 10 mi e Mojave; Mojave Desert Comment
  UC581132  Ericameria linearifolia H. L. Mason 1934-3-28 8010 Kern 4 mi e Onyx; Kern River Canyon Comment
  UC628483 Image available Monolopia stricta H. L. Mason 1935-5-2 9314 Kern 2 mi w Lost Hills (nw Kern County); San Joaquin Valley; W of Lost Hills, San Joaquin Valley, NW Kern Co. Comment
  UC634774  Fremontodendron californicum H. L. Mason 1934-3-28 8008 Kern 4 mi e of Onyx Comment
  UC635297  Astragalus didymocarpus H. L. Mason 1932-4-1 6884 Kern five mi s Muroc (Mojave Desert); , s of Muroc Comment
  UC635524  Ceanothus greggii var. vestitus H. L. Mason 1929-6-2 5360 Kern Tejon Pass Tehachapi Mts. (30 mi from Bakersfield,) Comment
  UC635600  Eschscholzia minutiflora H. L. Mason 1932-4-1 6878 Kern 5 mi s Muroc (toward Roosevelt); Mojave Desert Comment
  UC673546  Scrophularia californica subsp. floribunda H. L. Mason 1929-6-2 5352 Kern 30 mi from Bakersfield (Tejon Pass); Tehachapi Mts Comment
  UC907833  Linanthus bicolor Herbert L. Mason 1934-3-28 8005 Kern 31 mi w Onyx (lower Kern River Canyon); Kern River Canyon Comment
  UC907834  Linanthus parryae Herbert L. Mason 1934-5-28 8016 Kern 4 mi E of Onyx; Kern River drainage Comment
  UC907856  Linanthus bicolor Herbert L. Mason 1938-4-16 11730 Kern Isabella, Kern River drainage Kern River Comment
  UC908167  Gilia tricolor subsp. diffusa Herbert L. Mason 1949-4-23 14004 Kern below Breckenridge Mountain Road (Kern River Canyon); , below Breckenridge Mountain Road Comment
  UC908219  Gilia minor Herbert L. Mason 1935-4-1 6885 Kern five mi s Muroc (Mohave Desert); , s of Muroc Comment
  UC908370  Gilia interior Herbert L. Mason 1935-4-30 8344 Kern Walker Pass Comment
  UC908421  Gilia ochroleuca subsp. ochroleuca Herbert L. Mason 1935-3-29 8207 Kern two mi n Mohave; Mohave Desert, n of Mohave Comment
  UC908425  Gilia interior Herbert L. Mason 1934-3-28 8000 Kern Kern River Canyon Comment
  UC908557  Linanthus aureus Herbert L. Mason 1934-3-28 8013 Kern 4 mi e Onyx Comment
  UC908592  Leptosiphon nudatus Herbert L. Mason 1929-6-2 5353 Kern 30 mi from Bakersfield; Tehachpai Mountains, Tejon Pass Comment
  UC908788  Gilia interior Herbert L. Mason 1949-4-23 14004 Kern below Breckenridge Mountain Road (Kern River Canyon); Kern River Canyon Comment
  UC909130  Loeseliastrum matthewsii Herbert L. Mason 1935-4-30 8295 Kern near Inyokern; Owens Valley Comment
  SD45383  Gilia latiflora Herbert L. Mason 1935-3-29 8204 Kern 2.0 miles west of Randsburg, Mojave Desert. Comment
  UC909111  Linanthus aureus Herbert L. Mason 1949-4-23 14009 Kern w of Walker Pass; Yucca Groves Comment
  CAS-BOT-BC83216  Myosurus minimus Herbert L. Mason 1953-4-2 14501 Kings About 3 miles east of Hanford. Comment
  SEINET200021  Cyperus erythrorhizos Herbert L. Mason, S. Galen Smith 1948-8-18 8350 Kings Canal just W of Stratford. Comment
  UC1100636  Cyperus rotundus Herbert L. Mason and S. Galen Smith 1948-8-18 8349 Kings just w. of Stratford; San Joaquin Valley Comment
  UC1101437  Lindernia dubia var. anagallidea Herbert L. Mason and S. Galen Smith 1948-8-18 8351 Kings canal just w Stratford; San Joaquin Valley Comment
  UCD102897  Ammannia robusta Herbert L. Mason; S. Galen Smith 1948-8-18 8355 Kings West of Stratford. Comment
  UCD123916  Lindernia dubia Herbert L. Mason; S. Galen Smith 1948-8-18 8351 Kings canal just west of Stratford. Comment
  UCD63369  Eragrostis hypnoides Herbert L. Mason; S. Galen Smith 1948-8-18 8348 -A Kings Along a canal just west of Stratford. Comment
  CAS-BOT-BC10380  Paeonia brownii Herbert L. Mason 1936-5-2 11110 Lake Bartlett Mountain Road, 4 miles above Lucerne 1219 Comment
  CAS-BOT-BC114107  Cyperus squarrosus Herbert L. Mason 1945-8-24 12686 Lake East Shore, Lower Lake. Comment
  CAS-BOT-BC200701  Rhus aromatica H. L. Mason 1926-3-21 2763 Lake Toll House Canyon between Middletown and Mount St. Helena Comment
  CAS-BOT-BC221126  Salvia sonomensis H. L. Mason 1929-4-29 5252 Lake Between Kelseyville and Lower Lake Comment
  CAS-BOT-BC229526  Collomia diversifolia Herbert L. Mason 1938-5-1 11741 Lake 3 miles E of Middletown Comment
  CAS-BOT-BC229527  Collomia diversifolia Herbert L. Mason 1938-5-1 11741 Lake 3 miles E of Middletown Comment
  CAS-BOT-BC28220  Bolboschoenus fluviatilis Herbert L. Mason 1945-8-24 12673 Lake East Shore, Lower Lake Comment
  CAS-BOT-BC33462  Eriastrum brandegeeae Herbert Louis Mason 1945-6-28 12604 Lake Obsidian Ridge, SE of Borax Lake. Comment
  CAS-BOT-BC342182  Logfia filaginoides H. L. Mason 1933-4-30 7232 Lake Ridge near Aetna Springs Comment
  CAS-BOT-BC352833  Lasthenia glabrata subsp. glabrata H. L. Mason 1929-4-29 5250 Lake Blue Lake Comment
  CAS-BOT-BC445666  Sagittaria cuneata Herbert L. Mason 1945-6-29 12623 Lake Boggs Lake at base of Mount Hanna Comment
  CAS-BOT-BC64164  Ancistrocarphus filagineus H. L. Mason 1933-4-30 7227 Lake Near Aetna Springs Comment
  CAS-BOT-BC83217  Myosurus minimus Herbert L. Mason 1953-4-4 14503 Lake Playa north of Lower Lake, Mannings Flat. Comment
  HSC24623  Calyptridium quadripetalum H. L. Mason 1936-4-26 11097 Lake Barlett Springs, 16 mi. NE of Clear Lake 793 Comment
  JEPS5805  Fritillaria purdyi H. L. Mason 1954-3-17 Lake about 3 mi ne of Middletown (on Hill 1030) Comment
  POM257209  Streptanthus glandulosus H. L. Mason 1938-5-1 11747 Lake Bartlett Mountain, about 4 miles from Lucerne 1159 Comment
  POM312383  Mollugo verticillata H. L. Mason 1946-7-27 12953 Lake Clear Lake, 2-3 miles north of Lakeport. Comment
  POM313018  Potamogeton diversifolius H. L. Mason 1945-6-29 12624 Lake Boggs Lake at base of Mt. Hanna. Comment
  RSA310928  Leptosiphon bolanderi H. L. Mason 1938-5-1 11748 Lake Bartlett Mountain, about 4 miles from Lucerne 1159 Comment
  SEINET200246  Navarretia pauciflora Herbert L. Mason 1953-6-8 14534 Lake Meadow west of Boggs Lake. Comment
  UC1039517  Galium andrewsii subsp. andrewsii Herbert L. Mason 1930-6-1 5678 Lake St. Helena Creek Mt. St. Helena Comment
  UC1076320  Arceuthobium campylopodum Herbert L. Mason 1926-6-1 2590 Lake Upper Lake to Elk Mtn Comment
  UC1093932  Delphinium uliginosum Herbert L. Mason 1935-5-30 8327 Lake hill 2 mi e Middletown Comment
  UC1099906  Potamogeton nodosus Herbert L. Mason 1945-8-24 12683 Lake East Shore Lower Lake Comment
  UC1099981  Zannichellia palustris Herbert L. Mason and Verne Grant 1947-7-8 13282 Lake near junction of Williams hwy. and Upper lake hwy. Bear Creek Comment
  UC1099984  Zannichellia palustris Herbert L. Mason and Verne Grant 1947-7-8 13279 Lake near junction of Williams hwy. and Upper lake hwy. Bear Creek Comment
  UC1099986  Zannichellia palustris Herbert L. Mason and Verne Grant 1947-7-8 13276 Lake near junction of Williams hwy. and Upper lake hwy. Bear Creek Comment
  UC1100152  Damasonium californicum Herbert L. Mason 1946-5-30 12794 Lake Locomono Creek near Middletown; Locomono Creek Comment
  UC1100247  Eragrostis hypnoides Herbert L. Mason 1946-7-27 12951 Lake Clear Lake 2-3 mi n Lakeport; Clear Lake Comment
  UC1100678  Scirpus acutus var. occidentalis Herbert L. Mason 1946-7-27 12946 Lake margin of Clear Lake about one mi s Lakeport; margin of Clear Lake, s of Lakeport Comment
  UC1100845  Bolboschoenus fluviatilis Herbert L. Mason 1946-7-27 12954 Lake Upper Lake Upper Lake -- Lakeport Road Comment
  UC1100916  Bolboschoenus maritimus Herbert L. Mason, Verne Grant 1947-7-8 13277 Lake Bear Creek near junction of Williams Highway and Upper Lake Highway; Bear Creek Comment
  UC1101345  Myosurus minimus Herbert L. Mason 1953-4-4 14505 Lake playa n of Lower Lake (Mannings Flat); Mannings Flat Comment
  UC1101411  Brasenia schreberi Herbert L. Mason 1945-6-29 12620 Lake Boggs Lake at base Mt. Hanna; Boggs Lake at base of Mt. Hanna Comment
  UC1101474  Downingia bicornuta var. bicornuta Herbert L. Mason 1945-6-29 12619 Lake Boggs Lake at base of Mount Hanna Mount Hanna, Boggs Lake Comment
  UC1101552  Elatine heterandra Herbert L. Mason 1945-6-29 12625 Lake Boggs Lake base of Mt, Hanna Comment
  UC1111019  Elatine heterandra Herbert L. Mason 1937-5-27 11554 b Lake s side Mt. Konocti Comment
  UC1178812  Navarretia leucocephala subsp. bakeri Herbert L. Mason 1946-5-30 12802 Lake 1.5 mi w Lower Lake Comment
  UC1178923  Linanthus pygmaeus Herbert L. Mason 1953-6-8 14531 Lake 1 mi n Lower Lake Comment
  UC1178930  Damasonium californicum Herbert L. Mason 1953-6-8 14532 Lake 1.5 mi. w. Lower Lake Comment
  UC1178933  Allophyllum divaricatum Herbert L. Mason 1953-6-8 14520 Lake Butts Canyon, Black Oak Villa Comment
  UC1178981  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Herbert L. Mason 1946-5-30 12811 Lake e of Indian Valley (North Fork of Cache Creek); North Fork of Cache Creek 548 Comment
  UC1178984  Keckiella lemmonii Herbert L. Mason 1945-6-28 12603 Lake se of Borax Lake; Obsidian Ridge Comment
  UC1179052  Lotus grandiflorus Herbert L. Mason 1937-5-27 11554 Lake s side Mt. Konocti Comment
  UC1179101  Lessingia ramulosa Herbert L. Mason 1945-6-28 12597 Lake Three mi e Middletown Comment
  UC1191142  Collomia diversifolia Herbert L. Mason 1953-6-8 14522 Lake Black Oak Villa Butts Canyon Comment
  UC1191381  Cypselea humifusa Herbert L. Mason 1946-7-26 12944 Lake 1 mi s Lakeport (margin of Clear Lake); Clear Lake Comment
  UC1191393  Amaranthus californicus Herbert L. Mason 1945-8-24 12676 Lake e shore of Lower Lake Lower Lake Comment
  UC1212342  Hesperolinon bicarpellatum Herbert L. Mason 1952-6-15 14296 Lake Butts Creek road nine mi se Middletown; Inner North Coast Ranges Comment
  UC1212347  Hesperolinon bicarpellatum Herbert L. Mason 1952-6-15 14298 Lake head Butts Creek Canyon; Inner North Coast Range Comment
  UC552450  Epilobium nivium Herbert L. Mason 1936-9-20 11533 Lake sw slopes Snow Mountain 1828 Comment
  UC566778  Physalis pubescens var. integrifolia H. L. Mason Aug 1930 5713 Lake Clear Lake Comment
  UC566816  Lomatium utriculatum H. L. Mason 1926-3-21 2761 Lake Middletown to Mt. St. Helena Comment
  UC570785  Chamaesyce serpyllifolia H. L. Mason August, 1930 Lake rd to Bartlett Mtn Comment
  UC570943  Saxifraga californica Herbert L. Mason 1926-3-21 2771 Lake 2 mi s of Middletown Comment
  UC571112  Hesperolinon bicarpellatum H. L. Mason June, 1930 5689 Lake four mi e Middletown Comment
  UC581520  Viola purpurea subsp. quercetorum H. L. Mason 1926-3-21 2765 Lake between Middletown and Mount St. Helana Comment
  UC592147  Streptanthus glandulosus subsp. glandulosus H. L. Mason 1929-4-29 5244 Lake 3 mi w Lakeport (on road to Hopland) Comment
  UC595056  Nemophila menziesii H. L. Mason 1938-5-1 11742 Lake Bartlett Springs Comment
  UC632853  Ancistrocarphus filagineus H. L. Mason 1936-4-26 11096 Lake Bartlett Springs Comment
  UC635038  Cypselea humifusa H. L. Mason August 1930 5717 Lake shore of Clear Lake Comment
  UC635241  Cuscuta indecora H. L. Mason Aug 1930 5715 Lake Clear Lake Comment
  UC635529  Ceanothus jepsonii Herbert L. Mason 1926-3-22 2783 Lake Mt. St. Helena Comment
  UC635551  Saxifraga integrifolia Herbert L. Mason 1926-3-21 2767 Lake about 2 mi s of Middletown (along St. Helena Creek Road) Comment
  UC640588  Silene californica H. L. Mason June, 1930 5680 Lake n slope Mount St. Helena Inner North Coast Ranges, , Mt. St. Helena (St. Helena Creek) Comment
  UC672156  Calochortus amabilis Herbert L. Mason 1929-4-29 5253 Lake between Kelseyville and Lower Lake Comment
  UC672532  Mimulus kelloggii H. L. Mason 1929-4-29 5248 Lake 2.9 mi w Lakeport (road from Hopland to Lakeport) Comment
  UC672590  Hypericum concinnum H. L. Mason June 1930 5676 Lake slopes of Mt. St. Helena (St. Helena Creek); , St. Helena Creek Comment
  UC673309  Horkelia bolanderi Herbert L. Mason 1934-5-5 8127 Lake between Kelseyville Lower Lake (Foot of obsidian covered hill just above a meadow) Comment
  UC673448  Triphysaria pusilla H. L. Mason 1926-3-21 2757 Lake Toll House Canyon between Middletown and Mount St. Helena; btw Middletown and Mount St. Helena Comment
  UC673571  Epipactis gigantea Herbert L. Mason June, 1930 5679 Lake St. Helena Creek Mount St. Helena (slopes of mt.) Comment
  UC673632  Ancistrocarphus filagineus H. L. Mason 1933-4-30 7234 Lake 10 mi n, on road from Middletown to Pope Valley Pope Valley Comment
  UC700271 Image available Navarretia leucocephala subsp. pauciflora H. L. Mason 1945-5-12 12583 Lake 5 mi n Lower Lake; ; 5 mi. N of Lower Lake, Lake Co. Comment
  UC907793  Navarretia atractyloides Herbert L. Mason 1945-6-28 12591 Lake e of Middletown (just below the bridge) Comment
  UC907807  Navarretia atractyloides Herbert L. Mason 1945-6-28 12608 Lake 2.5 mi s Kelseyville Comment
  UC908157  Navarretia divaricata subsp. vividior Herbert L. Mason 1946-5-30 12804 Lake w slope Bartlett Mountain Comment
  UC908165  Navarretia intertexta Herbert L. Mason 1946-5-30 12798 Lake 3 mi e Middletown Comment
  UC908262  Navarretia linearifolia subsp. pinnatisecta Herbert L. Mason 1945-6-29 12612 Lake near Kelseyville; wash of Kelsey Creek, near Kelseyville Comment
  UC908408  Navarretia cotulifolia Herbert L. Mason 1945-5-12 12578 Lake e of Middletown; Locomono Creek Comment
  UC908599  Linanthus pygmaeus Herbert L. Mason 1935-5-30 8322 Lake w of Mirabel Lake Comment
  UC908641  Navarretia mellita Herbert L. Mason 1945-6-28 12609 Lake 2.5 mi s Kelseyville Comment
  UC908801  Linanthus jepsonii Herbert L. Mason 1933-4-30 7217 Lake Mount St. Helena Comment
  UC909055  Eriastrum abramsii Herbert L. Mason 1945-5-12 12585 Lake ridge between Burns Valley and Borax Lake Comment
  UC921146  Cyperus squarrosus Herbert L. Mason August, 1930 5726 Lake Clear Lake Comment
  UC980826  Hesperochiron pumilus Herbert L. Mason and Robert Sweeney 1953-4-17 14515 Lake due w. Lakeport (Four Mile Glade, Cow Mt.); Cow Mt., Four Mile Glade 914 Comment
  UC985644  Alisma plantago-aquatica Herbert L. Mason 1946-7-27 12945 Lake about 1 mi s Lakeport (margin of Clear Lake); Clear Lake Comment
  UCD48438  Navarretia jepsonii Herbert L. Mason 1946-5-30 12792 Lake Locomono Creek near Middletown, Lake County, California. Comment
  UCD48478  Navarretia intertexta Herbert L. Mason 1946-5-30 12798 Lake 3 miles E of Middletown. Comment
  UCD63376  Eragrostis hypnoides H. L. Mason 1945-8-24 12678 Lake East shore, Lower Lake. Comment
  CAS-BOT-BC361834  Psilocarphus oregonus H. L. Mason 1934-5-5 8124 Lake Near Hildebrand ranch, southeast of Kelseyville Comment
  CAS-BOT-BC512625  Eriastrum abramsii Herbert L. Mason 1945-5-12 12585 Lake Ridge between Burns Valley and Borax Lake Comment
  POM312967  Sparganium erectum subsp. stoloniferum H. L. Mason 1946-7-27 12943 Lake Margin of Clear Lake about one mile south of Lakeport. Comment
  POM85237  Orthocarpus attenuatus H. L. Mason 1926-3-21 2760 Lake Middle town. Comment
  RSA74699  Phacelia rattanii H. L. Mason 1937-5-27 11551 Lake 6 miles N of Lower Lake. Comment
  SEINET10890119 Image available Navarretia pauciflora Herbert L. Mason 1945-5-12 Mason 12583 Lake Comment
  UC566889  Sanicula tuberosa Herbert L. Mason 1926-3-21 2770 Lake 2 mi above Middletown (along St. Helena Creek, Middletown St. Helena Road); St. Helena Creek Comment
  UC604419  Psilocarphus oregonus H. L. Mason 1934-5-5 8124 Lake se of Kelseyville (near Hildebrand ranch) Comment
  UC632787  Collinsia greenei H. L. Mason 1936-4-26 11094 Lake e side Bartlett Mtn; Inner North Coast Ranges Comment
  UC635542  Clematis lasiantha H. L. Mason 1929-4-29 5232 Lake just e. Hopland; Mayacama Range Comment
Read comments
Jul 28 2015
  UC908080  Navarretia pubescens Herbert L. Mason 1945-6-28 12592 Lake 1 mi e Middletown; Lokomono Creek Bridge Comment
  UCD48714  Navarretia viscidula H. L. Mason 1945-6-28 12607 Lake 2.5 miles south of Kelseyville, Lake County, California. Comment
  UCD96982  Cypselea humifusa Herbert L. Mason 1945-8-24 12684 Lake East shore, Lower Lake. Comment
  JEPS22874  Polygonum polygaloides subsp. confertiflorum Herbert L. Mason Jul 29 1955-Jul 31 1955 14639 Lassen Pine Creek Flat Comment
  UC1060646  Polygonum polygaloides subsp. kelloggii Herbert L. Mason 1957-7-5 14712 Lassen between Madeline and summit of grade; Madeline Plains Comment
  UC1100216  Beckmannia syzigachne Herbert L. Mason 1947-7-9 13299 Lassen 5 mi e Bieber Comment
  UC1100437  Carex athrostachya Herbert L. Mason 1947-7-9 13300 Lassen 5 mi E of Bieber Comment
  UC1100770  Scirpus acutus var. occidentalis Herbert L. Mason, Verne Grant 1947-7-9 13298 Lassen irrigation ditch 5 mi e Bieber; e of Bieber Comment
  UC1101519  Callitriche verna Herbert L. Mason and Verne Grant 1947-7-9 13294 Lassen 5 mi e Bieber Comment
  UC1178962  Navarretia linearifolia subsp. linearifolia Herbert L. Mason Jul 29 1955-Jul 31 1955 14643 Lassen near Westwood Junction (railroad station 15 mi w Susanville) (southern Lassen County); w of Susanville, near Westwood Junction Comment
  UC1713222  Potamogeton pusillus subsp. pusillus Herbert L. Mason and Verne Grant 1947-7-9 13292 Lassen 5 miles east of Bieber Comment
  POM313130  Carex athrostachya H. L. Mason 1947-7-9 13300 Lassen Irrigation ditch 5 miles east of Bieber. Comment
  UC1051571  Helianthus nuttallii subsp. nuttallii Herbert L. Mason 1947-8-11 13492 Lassen w margin Lower Lake (Highway 81, n boundary of Lassen County with Modoc County) Comment
  UCD141340  Juncus balticus subsp. ater Herbert L. Mason; Verne Grant 1947-7-9 13297 Lassen 5 miles east of Bieber. Comment
  CAS-BOT-BC178632  Astragalus coccineus H. L. Mason 1926-4-27 3044 Los Angeles Rock Creek, Mojave Desert slope of San Gabriel Mountains Comment
  CAS-BOT-BC226399  Gilia latiflora subsp. latiflora Herbert L. Mason 1926-4-26 2970 Los Angeles Soledad Pass, four miles south of Vincent (Mint Canyon Highway) Comment
  CAS-BOT-BC326880  Xylorhiza tortifolia H. L. Mason; F. W. Peirson 1926-4-26 6662 Los Angeles 5 miles west of Rock Creek, Moajve Desert Comment
  JEPS19480  Orobanche cooperi Herbert L. Mason 1926-4-26 3021 Los Angeles Mohave Desert, Little Rock Creek Little Rock Creek; Mohave Desert, Little Rock Creek Comment
  JEPS46752  Pseudotsuga macrocarpa H. L. Mason 1926-1-1 Los Angeles Mt. Wilson Comment
  SD44505  Leptosiphon aureus Herbert L. Mason 1926-4-26 2945 Los Angeles Pacoima Wash, foothills of San Gabriel Mountains. Comment
  SFV16106  Mentzelia gracilenta S. Mason, et al. 1995-4-23 53 Los Angeles Mojave Desert Little Rock. Mount Emma Road, 0.8 miles above Fort Tejon Road on northern foothills of Transverse Range. 915 Comment
  UC1076386  Ephedra nevadensis H. L. Mason 1930-4-20 5593 Los Angeles hills in Rock Creek region Mohave Desert, Rock Creek Comment
  UC1076480  Minuartia douglasii Herbert L. Mason 1927-6-11 3741 Los Angeles Mount Wilson San Gabriel Mountains 1524 Comment
  UC1076496  Grayia spinosa Herbert L. Mason 1926-4-26 2992 Los Angeles 1 mi. e. Palmdale Comment
  UC1083157  Thysanocarpus laciniatus Herbert L. Mason 1926-4-26 3014 Los Angeles near Rock Creek; Mohave Desert, near Rock Creek Comment
  UC565547  Malacothrix glabrata H. L. Mason 1926-4-26 3006 Los Angeles Little Rock Creek Mohave Desert Comment
  UC566848  Oreonana vestita H. L. Mason 1927-6-15 3769 Los Angeles Old Baldy 2438 Comment
  UC573069  Cryptantha circumscissa H. L. Mason 1932-4-1 6868 Los Angeles 1 mi e Lancaster; Mojave Desert Comment
  UC592153  Caulanthus amplexicaulis Herbert L. Mason 1926-4-27 3039 Los Angeles Rock Creek San Gabriel Mts., Rock Creek Comment
  UC634893  Canbya candida Herbert L. Mason 1926-4-26 3020 Los Angeles Little Rock Creek Mojave Desert Comment
  UC634912  Salvia dorrii var. pilosa H. L. Mason 1926-4-26 2974 Los Angeles 4 mi s Vincent (Mint Canyon Highway); Soledad Pass Comment
  UC634914  Salvia leucophylla H. L. Mason 1926-4-26 2953 Los Angeles Saugus Comment
  UC635042  Pterostegia drymarioides Herbert L. Mason 1927-6-14 3755 Los Angeles San Gabriel Mts., San Antonio Canyon 914 Comment
  UC635080  Eriogonum fasciculatum var. polifolium Herbert L. Mason 1926-4-26 2962 Los Angeles 4 mi w Saugus Comment
  UC635453  Canbya candida H. L. Mason 1932-4-1 6859 Los Angeles 1 mi e of Lancaster (Mohave Desert); Mohave Desert Comment
  UC635653  Astragalus didymocarpus H. L. Mason 1926-4-26 2963 Los Angeles four mi w Saugus; w of Saugus Comment
  UC635807  Eriogonum pusillum Herbert L. Mason 1926-4-26 3012 Los Angeles near Rock Creek; Mohave Desert Comment
  UC672356  Phacelia fremontii Herbert L. Mason 1926-4-26 2984 Los Angeles along road from Vincent to Palmdale Comment
  UC672435  Phacelia davidsonii Herbert L. Mason 1926-4-27 3029 Los Angeles Rock Creek San Gabriel Mountains Comment
  UC672660  Mentzelia ravenii H. L. Mason 1926-4-26 2999 Los Angeles Little Rock Comment
  UC673434  Castilleja exserta subsp. venusta H. L. Mason 1932-4-1 6864 Los Angeles 1 mi e Lancaster; Mohave Desert Comment
  UC907848  Saltugilia splendens subsp. grantii Herbert L. Mason 1927-6-11 3744 Los Angeles Mount Wilson San Gabriel Mountains, Mount Wilson 914 Comment
  UC908130  Gilia minor Herbert L. Mason 1926-4-26 3005 Los Angeles Little Rock Mohave Desert, Little Rock Comment
  UC908269  Linanthus dichotomus Herbert L. Mason 1926-4-27 3023 Los Angeles Rock Creek San Gabriel Mountains Comment
  UC908820  Gilia latiflora subsp. latiflora Herbert L. Mason 1926-4-26 2970 Los Angeles four mi s Vincent (Soledad Pass (Mint Cayon Highway)); Soledad Pass, s of Vincent Comment
  UC908839  Gilia latiflora subsp. latiflora Herbert L. Mason 1926-4-26 3004 Los Angeles Little Rock Creek Mohave Desert, Little Rock Creek Comment
  UC908890  Gilia modocensis Herbert L. Mason 1926-4-27 3033 Los Angeles Rock Creek San Gabriel Mts., Rock Creek Comment
  UC908931  Gilia ochroleuca subsp. ochroleuca Herbert L. Mason 1926-4-27 3044 a Los Angeles Rock Creek San Gabriel Mts., Rock Creek 1219 Comment
  UCD124192  Penstemon grinnellii var. grinnellii Steve Mason; Helen M. Mason 1993-5-5 29 Los Angeles on Angeles Crest Hwy., 3.5 miles above Big Tujunga Canyon Road, above large parking area on southwest side of road, below water tank. 1798 Comment
  CAS-BOT-BC178633  Astragalus coccineus H. L. Mason 1926-4-27 3044 Los Angeles Rock Creek, San Gabriel Mountains Comment
  CAS-BOT-BC226338  Gilia latiflora subsp. davyi Herbert L. Mason 1934-3-30 8037 Los Angeles Antelope Valley, Mohave [Mojave] Desert Comment
  CAS-BOT-BC469352  Allium fimbriatum var. fimbriatum H. L. Mason 1926-4-26 3022 Los Angeles Near Rock Creek, north side of San Gabriel Mountians Comment
  SEINET12161224  Ceratonia siliqua E. Mason, Mason, R. E. 1944-1 Los Angeles near Los Angeles Comment
  UC1083313  Ephedra viridis Herbert L. Mason 1926-4-26 2960 Los Angeles 4 mi w of Sanger Comment
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Jul 31 2014
  UC565545  Rafinesquia neomexicana Herbert L. Mason 1926-4-27 3062 Los Angeles 30 mi w Victorville Comment
  UC566931  Asclepias vestita H. L. Mason 1934-3-30 8038 Los Angeles Yucca Grove Antelope Valley Comment
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Dec 13 2011
  UC672372  Eriodictyon crassifolium Herbert L. Mason 1926-4-26 2948 Los Angeles Pasadena to Rock Creek Pacomia Wash (Mohave Desert); , Pacomia Wash Comment
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Sep 25 2014
  UC908805  Gilia aliquanta Herbert L. Mason 1926-4-27 3049 Los Angeles along Los Angeles Co. Park Road between Little Rock Creek; Mohave Desert, btw Rock Creek and Little Rock Creek Comment
  UC909024  Gilia angelensis Herbert L. Mason 1926-4-26 2942 Los Angeles upper road Pacoima Wash foothills San Gabriel Mountains, Pacoima Wash (foothills of San Gabriel Mountains) Comment
  UCD114427  Boechera pulchra Steve Mason; Helen M. Mason 1993-5-9 36 Los Angeles Mt. Pines area, Lockwood Valley Rd., 3.7 mi. from Mnt. Pios Hwy, on the right side of the road. 1645 Comment
  CAS-BOT-BC186726  Astragalus gambelianus H. L. Mason 1929-3-23 5098 Madera Hills back of Madera Comment
  CAS-BOT-BC229511  Collomia rawsoniana H. L. Mason 1938-7-16 11954 Madera Cascadel Ranch on a tributary to Whisky Creek, 3 miles E of South Fork Comment
  CAS-BOT-BC229514  Collomia rawsoniana H. L. Mason 1938-7-16 11954 Madera Cascadel Ranch on a tributary to Whisky Creek, 3 miles E of South Fork 1127 Comment
  CAS-BOT-BC56392  Leucothoe davisiae Herbert L. Mason 1941-7-19 12526 Madera Ottoway Creek northeast of Merced Pass Trail, Sierra Nevada, Yosemite National Park 2743 Comment
  JEPS19554  Mimulus suksdorfii Herbert L. Mason 1941-7-14 12524 Madera nw Merced Peak (slopes about Ottoway Lake. headwters of Illilouette Creek); Yosemite National Park, Ottoway Creek drainage 2971 Comment
  UC1076522  Allium obtusum var. conspicuum Herbert L. Mason 1941-7-7 12501 Madera Morraine Meadow near Givens Creek (Yosemite Nat'l Park); Sierra Nevada, , Morraine Meadow 2804 Comment
  UC1111590  Dodecatheon subalpinum Herbert L. Mason 1941-7-9 12516 Madera ridge w Moraine Meadows (Sierra Nevada); , Yosemite National Park 2682 Comment
  UC1111601  Gayophytum racemosum Herbert L. Mason 1941-7-14 12525 Madera Ottoway Lake Sierra Nevada, Yosemite National Park 3048 Comment
  UC566722  Lasthenia debilis H. L. Mason 1929-3-24 5113 Madera eighteen mi e Madera (at junction of Yosemite Road) Comment
  UC570758  Callitriche heterophylla var. bolanderi H. L. Mason 1929-3-24 5111 Madera 18 mi e Madera (junction of Yosemite Road) Comment
  UC629726  Eriastrum pluriflorum H. L. Mason 1938-7-16 11956 Madera 2 mi s South Fork; Sierra Nevada 1127 Comment
  UC635578  Limnanthes douglasii subsp. rosea H. L. Mason 1929-3-24 5106 Madera 18 mi e Madera (at junction of Yosemite Road) Comment
  UC907873  Linanthus filipes Herbert L. Mason 1929-3-24 5104 Madera 18 mi e Madera (at junction of Yosemite Road, between Bates Station and O'Neals) Comment
  UCR80250  Collomia rawsoniana H. L. Mason 1938-7-16 11954 Madera Cascadel Ranch on a tributary to Whisky Creek, 3 mi east of South Fork 1128 Comment
  CAS-BOT-BC153891  Erythranthe grayi Herbert L. Mason 1938-7-16 11953 Madera Four miles south of Miami Ranger Station; Sierra Nevada 1219 Comment
  CAS-BOT-BC514831  Eriastrum pluriflorum subsp. pluriflorum H. L. Mason 1938-7-16 11956 Madera Sierra Nevada: 2 mi S of South Fork 1127 Comment
  CAS-BOT-BC56252  Gaultheria humifusa Herbert L. Mason 1941-7-14 12520 Madera Ottoway Lake 2987 Comment
  HSC17103  Leptosiphon grandiflorus H. L. Mason 1940-5-5 12275 Madera Los Banos Creek Comment
  UC908882  Navarretia pubescens H. L. Mason 1938-5-10 11822 Madera n of Wood Lake (on Sequoia National Park road); Sierra Nevada 1828 Comment
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Jul 18 2020
  UC963790  Linanthus ciliatus Herbert L. Mason 1938-5-10 11821 Madera n of Wood Lake (on Sequoia National Park Road) Comment
  CAS-BOT-BC121644  Delphinium patens subsp. patens H. L. Mason 1917-4-28 s.n. Marin Mt. Tamalpais Comment
  CAS-BOT-BC13135  Agoseris hirsuta Herbert L. Mason 1917-4-28 s.n. Marin Mill Valley Comment
  CAS-BOT-BC226657  Leptosiphon grandiflorus Herbert L. Mason 1932-7-24 7123 Marin Point Reyes Comment
  CAS-BOT-BC45863  Limnanthes douglasii var. sulphurea Charles T. Mason, Jr. 1948-5-16 1200 Marin Along Pt. Reyes road 13 mi. W of Inverness. Comment
  CAS-BOT-BC45867  Limnanthes douglasii var. sulphurea H. L. Mason; A. M. Carter 1938-5-18 1413 Marin Point Reyes Peninsula, 12 miles from Inverness. Comment
  CAS-BOT-BC612  Dicentra formosa subsp. formosa Herbert L. Mason 1926-2-21 2649 Marin Road from Inverness to Point Reyes Lighthouse. Comment
  UC1076087  Chrysolepis chrysophylla var. minor Herbert L. Mason 1925-10-4 2240 Marin n side Mt. Tamalpais Comment
  UC1083141  Streptanthus niger Herbert L. Mason 1940-5-20 12290 Marin serpentine outcrop back of Tiburon Comment
  UC1083180  Quercus chrysolepis H. L. Mason 1924-11-15 1138 Marin Willow Creek Rattlesnake Comment
  UC1099794  Sparganium erectum subsp. stoloniferum Herbert L. Mason 1946-7-24 12925 Marin 2nd lake s Bear Valley (on road to Lake Ranch) Comment
  UC1100438  Carex harfordii Herbert L. Mason 1946-7-24 12936 Marin Third lake (at Double Point) S of Bear Valley on road to Lake Ranch Comment
  UC1178872  Collinsia heterophylla Herbert L. Mason 1940-5-20 12288 Marin outcrop back of Tiburon Comment
  UC1191265  Polygonum punctatum Herbert L. Mason 1946-7-24 12922 Marin margin of first lake s Bear Valley (2.8 mi n of Lake Ranch) Comment
  UC1191511  Ribes divaricatum var. pubiflorum Herbert L. Mason 1946-7-24 12933 Marin second lake s Bear Valley (on road to Lake Ranch) Comment
  UC1191514  Ribes menziesii Herbert L. Mason 1946-7-24 12920 Marin 2.8 mi n Lake Ranch (first lake s of Bear Valley) Comment
  UC1191952  Oenanthe sarmentosa Herbert L. Mason 1946-7-24 12928 Marin 2nd. lake s. Bear Valley (on rd to Lake Ranch) Comment
  UC555294  Rubus spectabilis H. L. Mason 1926-2-21 2644 Marin Inverness Comment
  UC555347  Thermopsis californica var. californica Herbert L. Mason 1928-4-13 4318 Marin hills n San Rafael Comment
  UC555591  Trifolium gracilentum H. L. Mason 1928-4-28 4397 Marin Tiburon Peninsula Comment
  UC566654  Senecio aronicoides H. L. Mason 1928-2-18 4161 Marin Inverness Ridge , Inverness Ridge (Point Reyes) Comment
  UC566743  Eriophyllum lanatum var. arachnoideum Herbert L. Mason 1925-4-12 1334 Marin Pipe line trail in chaparral; Mt. Tamalpais Comment
  UC570980  Ribes menziesii Herbert L. Mason 1926-2-21 2661 Marin Point Reyes Comment
  UC571053  Ledum glandulosum H. L. Mason 1926-2-21 2657 Marin on road from Point Reyes Light Comment
  UC571119  Hesperolinon congestum H. L. Mason 1928-4-28 4409 Marin Tiburon Peninsula Comment
  UC571222  Arctostaphylos nummularia H. L. Mason 1925-2-1 1219 Marin Mount Tamalpais Comment
  UC571223  Arctostaphylos nummularia Herbert L. Mason 1925-4-12 1323 Marin Mt. Tamalpais Comment
  UC581120  Arctostaphylos virgata H. L. Mason 1935-4-12 8265 Marin Inverness Ridge Comment
  UC592152  Streptanthus glandulosus subsp. secundus Herbert L. Mason 1926-3-6 2690 Marin Corte Madera Ridge Mt. Tamalpais Comment
  UC634572  Ceanothus gloriosus var. gloriosus H. L. Mason 1926-2-21 2662 Marin near lighthouse on sea cliffs, Point Reyes Comment
  UC634817  Garrya elliptica H. L. Mason 1925-2-1 1228 Marin Mount Tamalpais Comment
  UC634976  Ranunculus orthorhynchus var. bloomeri H. L. Mason 1928-3-24 4266 Marin Millerton; Tomales Bay Comment
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May 25 2011
  UC635143  Stachys ajugoides var. rigida H. L. Mason 1924-11-16 1144 Marin Willow Camp Mount Tamalpais Comment
  UC635263  Allium unifolium H. L. Mason 1928-4-28 4390 Marin Tiburon Peninsula Comment
  UC635454  Dicentra formosa H. L. Mason 1926-2-21 2649 Marin road from Inverness to Point Reyes Lighthouse Comment
  UC635523  Ceanothus foliosus Herbert L. Mason 1925-2-1 1217 Marin hills above Mill Valley Mt. Tamalpais Comment
  UC635706  Soliva sessilis H. L. Mason 1928-4-13 4315 Marin hills n San Rafael Comment
  UC672237  Micropus californicus var. californicus Herbert L. Mason 1928-4-13 4317 Marin hill n San Rafael Comment
  UC672418  Phacelia distans Herbert L. Mason 1928-4-28 4395 Marin Tiburon Peninsula Comment
  UC672604  Myrica californica Herbert L. Mason 1924-10-12 1113 Marin s.e. slope Mt. Tamalpais Comment
  UC672609  Myrica californica Herbert L. Mason 1925-4-12 1325 Marin Mt. Tamalpais, Pipe Line Trail Comment
  UC673298  Cardamine californica Herbert L. Mason 1925-1-18 1180 Marin hills n San Rafael; hills n of San Rafael Comment
  UC673466  Castilleja rubicundula subsp. lithospermoides H. L. Mason 1928-4-28 4408 Marin Tiburon Peninsula Comment
  UC908743  Collomia heterophylla Herbert L. Mason 1925-3-18 1302 Marin along Pipe-line trail Mt. Tamalpais Comment
  UC912298  Abronia Herbert L. Mason 1924-11-16 1151 Marin Stinson Beach, Willow camp Comment
  UC912581  Melica torreyana H. L. Mason 1928-4-28 4414 Marin Tiburon Peninsula Comment
  UC912648  Koeleria macrantha H. L. Mason 1928-4-28 4416 Marin Tiburon Peninsula Comment
  UC971828  Limnanthes douglasii subsp. sulphurea Herbert L. Mason 1941-5-23 Marin Point Reyes Peninsula Comment
  CAS-BOT-BC267285  Campanula californica H. L. Mason 1932-7-24 7116 Marin Marsh on Inverness Ridge Comment
  POM312969  Sparganium erectum subsp. stoloniferum H. L. Mason 1946-7-24 12925 Marin Second lake south of Bear Valley on road to Lake Ranch. Comment
  RSA435680  Limnanthes douglasii subsp. douglasii H. L. Mason, Annetta Carter 1938-5-18 s.n. Marin Point Reyes Peninsula, 12 miles from Inverness Comment
  SEINET10463902  Campanula californica Mason 1932-7-24 Mason 7116 Marin MARSH ON INVERNESS RIDGE Comment
  UC1048128  Hypochaeris radicata H. L. Mason 1938-5-1 652 Marin Point Reyes Comment
  UC555364  Trifolium wormskioldii H. L. Mason 1927-4-26 5221 Marin in bog at base of rd where stream empty into Bolinas Bay Comment
  UC635399  Camissoniopsis cheiranthifolia subsp. cheiranthifolia H. L. Mason 1924-11-16 1147 Marin sand dunes Comment
  UC672471  Collinsia sparsiflora var. collina H. L. Mason 1927-4-26 5211 Marin road from Fairfax to crest of Bolinas (via Alpine Dam) Comment
  CAS-BOT-BC18172  Bulbostylis capillaris H. L. Mason 1938-7-13 11946 Mariposa Yosemite National Park. Meadow, Base of El Capitan, Yosemite Valley. 1226 Comment
  CAS-BOT-BC219029  Trifolium bolanderi Herbert L. Mason 1936-8-6 11518 Mariposa Peregoy Meadow, Glacier Point road 2255 Comment
  CAS-BOT-BC302649  Gnaphalium palustre Herbert L. Mason 1936-7-12 11238 Mariposa Sierra Nevada, Yosemite National Park. Peregoy Meadow, Glacier Point 2255 Comment
  CAS-BOT-BC349247  Microseris nutans H. L. Mason 1936-7-12 11243 Mariposa Yosemite National Park. Peregoy Meadow, Glacier Point road 2255 Comment
  CAS-BOT-BC419906  Polygonum polygaloides subsp. kelloggii Herbert L. Mason 1936-8-6 11516 Mariposa Sierra Nevada, Yosemite National Park. Peregoy Meadow, Glacier Point road 2255 Comment
  JEPS825  Ipomopsis aggregata subsp. bridgesii H. L. Mason 1922-7-27 334 Mariposa hill s of Porcupine Flat Sierra Nevada, Yosemite National Park 2133 Comment
  SBBG27404  Galium trifidum H. L. Mason 1936-7-12 11241 Mariposa Peregoy Meadow, Glacier Point Rd 2255 Comment
  SEINET4152199  Stenophyllus capillaris H. L. Mason 1938-7-13 11946 Mariposa Base of El Capitan, Yosemite Valley 1227 Comment
  SEINET4170661 Image available Hemicarpha occidentalis H. L. Mason 1938-7-13 11945 Mariposa Base of El Capitan, Yosemite Valley; Yosemite National Park 1227 Comment
  UC1039503  Galium bifolium Herbert L. Mason 1938-7-15 11957 Mariposa Tamarack Flat Yosemite National Park Comment
  UC1056427  Lewisia nevadensis Herbert L. Mason 1936-7-12 11245 Mariposa Peregoy Meadow, Glacier Point Road Sierra Nevada, Yosemite National Park 2255 Comment
  UC1056437  Phleum alpinum Herbert L. Mason 1936-8-6 11506 Mariposa Yosemite National Park Glacier Point road Peregoy Meadow; Yosemite National Park, Glacier Point road, Peregoy Meadow 2255 Comment
  UC1056449  Claytonia rubra subsp. rubra Herbert L. Mason 1936-7-12 11230 Mariposa Glacier Point; Sierra Nevada, Yosemite National Park, Peregoy Meadow 2255 Comment
  UC1056976  Montia chamissoi Herbert L. Mason 1936-8-6 11507 Mariposa Peregoy Meadow, Glacier Point Road, Yosemite National Park Peregoy Meadow; Sierra Nevada, Yosemite National Park, Peregoy Meadow 2255 Comment
  UC1081521  Saxifraga oregana Herbert L. Mason 1936-7-12 11236 Mariposa Glacier Point, Peregoy Meadow; Sierra Nevada, Yosemite National Park, Glacier Point, Perego 2255 Comment
  UC1081544  Thalictrum fendleri Herbert L. Mason 1936-7-12 11221 Mariposa Peregoy Meadow Sierra Nevada, Yosemite National Park, Glacier Point 2255 Comment
  UC1081565  Ivesia unguiculata Herbert L. Mason 1936-7-12 11242 Mariposa Peregoy Meadow; Sierra Nevada, Yosemite National Park, Glacier Point 2255 Comment
  UC1083117  Polygonum convolvulus Herbert L. Mason 1936-7-12 12217 a Mariposa Merced River Yosemite National Park, Yosemite Valley Comment
  UC1083124  Dicentra formosa Herbert L. Mason 1926-5-16 11131 Mariposa Chowchilla Mountain Comment
  UC1083134  Antennaria corymbosa Herbert L. Mason 1936-7-12 11240 Mariposa Glacier Point road, (wet meadow surrounded by Pinus murrayana) Peregoy Meadow; Sierra Nevada, Yosemite National Park 2255 Comment
  UC1093948  Lupinus stiversii Herbert L. Mason 1928-6-28 4860 Mariposa Wawona Comment
  UC1111533  Trifolium longipes var. nevadense Herbert L. Mason 1936-8-6 11504 Mariposa Peregoy Meadow, Glacier Point Rd Sierra Nevada, Yosemite National Park 2255 Comment
  UC1199849  Dodecatheon jeffreyi H. L. Mason 1922-7-25 327 Mariposa 1 1/2 mi w Porcupine Flat Sierra Nevada Mountains, Yosemite National Park 2133 Comment
  UC1199860  Dodecatheon alpinum H. L. Mason 1922-9-2 355 Mariposa Snow Flat Sierra Nevada Mountains, Yosemite National Park (Yosemite National Park) Comment
  UC570796  Euphorbia crenulata H. L. Mason 1928-6-28 4864 Mariposa Wawona Comment
  UC629710  Lipocarpha occidentalis H. L. Mason 1938-7-13 11945 Mariposa base of El Capitan, Yosemite National Park, Yosemite Valley El Capitan; Yosemite National Park, Yosemite Valley, El Capitan 1226 Comment
  UC632775  Lipocarpha occidentalis H. L. Mason 1936-7-12 11216 Mariposa along Merced River, Yosemite National Park, Yosemite Valley Merced River; Yosemite National Park, Yosemite Valley, Merced River Comment
  UC632808  Hesperochiron pumilus H. L. Mason 1936-7-12 11222 Mariposa Yosemite Nat'l Park, Peregoy Meadow, Glacier Point rd. 2255 Comment
  UC632862  Castilleja tenuis H. L. Mason 1936-7-12 11229 Mariposa Peregoy Meadows Yosemite National Park (Glacier Point road) 2255 Comment
  UC673387  Dodecatheon hendersonii Herbert L. Mason 1938-4-17 11740 Mariposa 8 mi e Hornitos; Sierra Nevada, e of Hornitos Comment
  UC909043  Gilia capitata subsp. mediomontana Herbert L. Mason 1928-6-28 4862 Mariposa Wawona Comment
  UC912616  Hemizonella minima H. L. Mason 1923-7-28 664 Mariposa Porcupine Flat Sierra Nevada Mountains, Yosemite National Park Comment
  CAS-BOT-BC126817  Ceanothus fresnensis Herbert L. Mason 1938-7-13 11950 Mariposa Wawona Road south of Chinquapin Comment
  CAS-BOT-BC136155  Dodecatheon alpinum Herbert L. Mason 1922-7-26 332 Mariposa Porcupine Flat, east of Yosemite Creek, Tioga Pass Road - Yosemite National Park Comment
  CAS-BOT-BC16909  Delphinium pratense Herbert L. Mason 1936-7-6 11149 Mariposa Hetch Hetchy Trail west of Yosemite Creek 2377 Comment
  POM257207  Streptanthus polygaloides H. L. Mason 11118 Mariposa Summit of road between Coulterville and Bagby. 701 Comment
  SBBG27380  Collinsia torreyi var. latifolia H. L. Mason 1936-7-15 11258 Mariposa Tamarack Flat, old Big Oak Flat Rd 1920 Comment
  SEINET10481896  Streptanthus polygaloides Mason 1936-5-15 Mason 11118 Mariposa Serpentine outcrops. Summit of rd between coulterville and bagby. 701 Comment
  SEINET190352  Dodecatheon subalpinum H. L. Mason 1928-7-3 4867 Mariposa Yosemite National Park; Yosemite Creek drainage, Tioga Road, head of Yosmite Creek grade. Comment
  UC1039998  Rubus parviflorus Herbert L. Mason 1936-7-9 11178 Mariposa s White Wolf (hill forming boundary between Tuolumne and Mariposa Counties); Sierra Nevada, Yosemite National Park, s of White Wolf 2590 Comment
  UC1081534  Chaenactis glabriuscula var. glabriuscula Herbert L. Mason 1936-3-21 11027 Mariposa 3 m n of Coulterville Comment
  UC1081552  Delphinium nuttallianum Herbert L. Mason 1936-7-6 11149 Mariposa Hetch Hetchy trail w Yosemite Creek; Sierra Nevada, Yosemite National Park 2377 Comment
  UC1083211  Cornus sericea subsp. sericea Herbert L. Mason 1936-7-6 11143 Mariposa Hetch Hetchy Trail Yosemite Nat'l Park; Sierra Nevada, Yosemite Nat'l Park 2286 Comment
  UC1093679  Lupinus bicolor Herbert L. Mason 1938-4-17 11735 Mariposa ridge w Mormon Bar; Sierra Nevada foothills, w of Mormon Bar 548 Comment
  UC632821  Agoseris heterophylla var. cryptopleura H. L. Mason 1936-3-21 11022 Mariposa 3 mi n, on serpentine ridge Coulterville Comment
  UC632827  Collinsia sparsiflora var. collina Herbert L. Mason 1936-3-21 11026 Mariposa 3 mi n Coulterville Comment
  UC632845  Eriophyllum lanatum var. integrifolium H. L. Mason 1936-7-9 11177 Mariposa s White Wolf (e slope of hill forming bouindary between Tuolumne and Mariposa counties); Yosemite National Park 2590 Comment
  UC632852  Ancistrocarphus filagineus H. L. Mason 1936-3-21 11034 Mariposa 4 mi n Coulterville Comment
  UC632859  Pseudobahia heermannii H. L. Mason 1936-3-21 11021 Mariposa 3 mi n of Coulterville Comment
  UC632869  Collinsia tinctoria H. L. Mason 1936-5-15 11121 Mariposa Summit of road from Coulterville to Bagby Comment
  UCD123683  Collinsia torreyi Herbert L. Mason 1936-7-15 11258 Mariposa Tamarack Flat, Old Big Oak Flat Road, Yosemite National Park. 1920 Comment
  CAS-BOT-BC112401  Isolepis carinata Herbert L. Mason 1946-5-19 12783 Mendocino Cleone Lake, north of Fort Bragg Comment
  CAS-BOT-BC225487  Gilia millefoliata Herbert L. Mason 1946-5-18 12775 Mendocino Sand dunes 6 miles north of Fort Bragg Comment
  CAS-BOT-BC225489  Gilia millefoliata Herbert L. Mason 1946-5-19 12784 Mendocino Cleone Lake, north of Fort Bragg Comment
  CAS-BOT-BC34194  Carex californica Herbert L. Mason 1946-5-18 12762 Mendocino East of Fort Bragg. Comment
  CAS-BOT-BC78399  Pinus contorta subsp. contorta H. L. Mason; N. T. Mirov; Palmer Stockwell 1948-6-9 2018 Mendocino Two miles east of Mendocino City Comment
  CAS-BOT-BC78427  Pinus contorta subsp. contorta Herbert L. Mason 1934-9-3 8146 Mendocino White plains three miles east of Mendocino City Comment
  JEPS21188  Cupressus goveniana subsp. pygmaea Herbert L. Mason 1928-8-25 4920 Mendocino 1 mi e of mouth of Noyo River; Noyo Mesa Comment
  POM264562  Cupressus goveniana subsp. pygmaea H. L. Mason 1934-9-3 8147 Mendocino White Plains, 3 miles east of Mendocino City Comment
  RSA31092  Pinus contorta var. contorta H. L. Mason 1934-9-3 8146 Mendocino White Plains, 3 miles east of Mendocino City Comment
  UC1039591  Phoradendron villosum Herbert L. Mason 1926-1-1 2591 Mendocino summit Elk Mt. Comment
  UC1076050  Viola sheltonii Herbert L. Mason 1947-5-18 14784 Mendocino lower slopes of Anthony Peak (w of Government Camp) Comment
  UC1076053  Phlox speciosa subsp. occidentalis Herbert L. Mason 1947-5-18 14785 Mendocino w of Government Camp (lower slopes of Anthony Peak); Anthony Peak Comment
  UC1076279  Cupressus goveniana subsp. pygmaea Herbert L. Mason 1928-10-21 5009 Mendocino no of Fort Bragg; Pudding Creek Comment
  UC1076283  Cupressus goveniana subsp. pygmaea H. L. Mason 1928-8-25 4920 Mendocino mesa 1 mi e of mouth of Noyo River; Noyo Comment
  UC1076291  Orobanche californica subsp. californica Herbert L. Mason 1932-8-28 7173 Mendocino Point Arena. Comment
  UC1076323  Arceuthobium campylopodum H. L. Mason 1932-8-27 7168 Mendocino Point Arena Comment
  UC1083112  Phacelia bolanderi Herbert L. Mason 1940-5-22 12296 Mendocino Navarro River Comment
  UC1083307  Pinus contorta subsp. bolanderi Herbert L. Mason 1928-8-25 4918 Mendocino Noyo Comment
  UC1083387  Pinus contorta subsp. bolanderi Herbert L. Mason 1928-8-25 4919 Mendocino Noyo Comment
  UC1093905  Lithocarpus densiflorus Herbert L. Mason 1932-8-26 7160 Mendocino Pine Barrens at Mendocino City; Mendocino City Comment
  UC1093937  Symphyotrichum chilense Herbert L. Mason 1932-8-26 7139 Mendocino Navarro River Comment
  UC1100789  Isolepis cernua Herbert L. Mason 1946-5-19 12780 Mendocino n Ft. Bragg (Cleone Lake); , n of Ft. Bragg Comment
  UC1101062  Luzula subsessilis Herbert L. Mason 1946-5-19 12781 Mendocino n Fort Bragg; n of Fort Bragg, Cleone Lake Comment
  UC1178878  Clarkia davyi Herbert L. Mason 1940-5-22 12306 Mendocino headland n Pudding Creek Slough (near Fort Bragg) Comment
  UC1178975  Calystegia soldanella Herbert L. Mason 1946-5-18 12772 Mendocino 6 mi n Fort Bragg (sand dune); n Fort Bragg Comment
  UC1191139  Juncus articulatus Herbert L. Mason 1929-8-24 5396 Mendocino Pudding Creek Slough Fort Bragg Comment
  UC1714384  Mentha canadensis H. L. Mason 1929-8-24 5399 Mendocino Pudding Creek Slough near Fort Bragg; Pudding Creek Slough near Fort Bragg Comment
  UC555293  Heteromeles arbutifolia H. L. Mason 1926-1-1 2581 Mendocino Upper Lake to Elk Mt. Comment
  UC555499  Rubus spectabilis H. L. Mason June 1930 5627 Mendocino Fort Bragg Comment
  UC566767  Helenium puberulum H. L. Mason 1932-8-26 7141 Mendocino Navarro River Comment
  UC571059  Gaultheria shallon H. L. Mason 1932-8-26 7156 Mendocino Mendocino City, [Pine Barrens] Mendocino City Comment
  UC571195  Arctostaphylos columbiana H. L. Mason 1928-10-21 4999 Mendocino Fort Bragg Comment
  UC571197  Arctostaphylos columbiana H. L. Mason 1932-8-26 7159 Mendocino pine barrens Mendocino City Comment
  UC571215  Arctostaphylos nummularia H. L. Mason 1932-8-26 7167 Mendocino Pine Barrens Mendocino Comment
  UC634660  Clarkia concinna subsp. concinna H. L. Mason 1930-6-1 5621 Mendocino Cloverdale to Fort Bragg; Navarro River Comment
  UC634822  Drosera rotundifolia H. L. Mason June 1930 5638 Mendocino Fort Bragg Comment
  UC635099  Ranunculus occidentalis H. L. Mason 1930-6-1 5614 Mendocino Cloverdale to Fort Bragg (via river); Navarro River Comment
  UC635324  Montia linearis H. L. Mason 1929-5-9 5267 Mendocino 1 mi from Laytonville (along Redwood Highway) Comment
  UC635506  Umbellularia californica H. L. Mason 1925-12-30 2558 Mendocino Hopland, Cloverdale Grade Cloverdale Grade; Hopland, Cloverdale Grade Comment
  UC635697  Stachys chamissonis H. L. Mason 1928-10-21 5005 Mendocino near Fort Bragg; Pudding Creek Comment
  UC635722  Datisca glomerata H. L. Mason 1932-8-26 7145 Mendocino Navarro River Comment
  UC640592  Silene californica H. L. Mason June, 1930 5622 Mendocino between Cloverdale and Yorkville Post Office (on Navarro River Road to Fort Bragg); North Coast Ranges, Navarro River Road to Fort Bragg Comment
  UC672460  Collinsia parviflora H. L. Mason 1929-5-9 5271 Mendocino 5 mi w of Laytonville Comment
  UC673407  Lilium maritimum Herbert L. Mason Aug 1930 5739 Mendocino Fort Bragg Comment
  UC673585  Piperia elongata H. L. Mason 1932-8-26 7163 Mendocino Pine Barrens Mendocino Comment
  UC775195  Goodyera oblongifolia Herbert L. Mason 1940-10-13 Mendocino 2 mi n of Fort Bragg (Little Valley); Little Valley Comment
  UC908588  Gilia tricolor subsp. tricolor Herbert L. Mason 1929-5-9 5277 Mendocino 5 mi w Laytonville; w of Laytonville Comment
  UC962110  Gilia capitata subsp. pacifica H. L. Mason June 1930 5626 Mendocino Fort Bragg Comment
  UC963134  Cupressus goveniana subsp. pygmaea Herbert L. Mason 1946-5-18 12767 Mendocino White Plains, 1 1/2 mi E of Mendocino City Comment
  UC971856  Limnanthes bakeri Charles T. Mason Jr. 1948-5-8 1181 Mendocino 0.6 mi n Willits High School (on e side of Hwy 101) 426 Comment
  CAS-BOT-BC451583  Lilaea scilloides Herbert L. Mason 1948-6-10 13575 Mendocino Highway 1, 3 miles south of Gualala Comment
  SEINET8727022 Image available Limnanthes bakeri Charles T. Mason Jr. 1948-1 1181 Mendocino 0.6 miles N Willits High School on east side of US Highway 101. 1400 feet. Topotype. 427 Comment
  UC1056960  Isolepis carinata Herbert L. Mason 1940-5-22 12297 Mendocino s Albion (coastal bluff); s of Albion Comment
  UCD49885  Isolepis carinata Herbert L. Mason 1946-5-19 12783 Mendocino (S. carinatus Gray). Cleone Lake, north of Fort Bragg, Mendocino County. Comment
  CAS-BOT-BC113408  Eleocharis flavescens var. flavescens Herbert L. Mason; Stanley Galen [S. Galen] Smith 1948-8-19 8376 Merced San Joaquin River, bridge below Snelling. Comment
  CAS-BOT-BC114192  Cyperus strigosus Herbert L. Mason; Stanley Galen [S. Galen] Smith 1948-8-19 8383 Merced Marsh 1 mi W of Snelling. Comment
  CAS-BOT-BC400241  Anemopsis californica Herbert L. Mason; S. Galen Smith 1948-8-9 8296 Merced About 12 miles west of Los Banos Comment
  JEPS21906  Cordylanthus mollis subsp. hispidus Herbert L. Mason and Galen Smith 1948-8-9 8306 Merced 2 mi n Dos Palos (along old Santa Fe Grade) Comment
  SBBG61762  Hollisteria lanata H. L. Mason 1940-5-4 12266 Merced Ortigalita Cyn, 2 mi NE of Ortigalita Peak 304 Comment
  UC1076197  Eremalche parryi Herbert L. Mason 1940-5-3 12256 Merced 2 mi. n.e. Ortigalita; S. Coast Ranges, Ortigalita Canyon 304 Comment
  UC1099834  Potamogeton pectinatus Herbert L. Mason 1948-6-29 13580 Merced 5 mi n of Volta; San Joaquin Valley Comment
  UC1099896  Potamogeton pusillus var. pusillus Herbert L. Mason, S. Galen Smith 1948-8-10 8309 Merced just w of South Dos Palos Comment
  UC1100043  Potamogeton pusillus var. pusillus Herbert L. Mason, S. Galen Smith 1948-7-27 8215 Merced 1/4 mi s of Ingomar Comment
  UC1100124  Egeria densa Herbert L. Mason and S. Galen Smith 1948-7-29 8241 Merced 5 mi e Los Banos (Turner Island Road) Comment
  UC1100191  Chloris gayana Herbert L. Mason and S. Galen Smith 1948-7-27 8226 Merced on Delta road n Los Banos (w of salt slough) Comment
  UC1100619  Eleocharis acicularis Herbert L. Mason and S. Galen Smith 1948-8-12 8239 Merced 3 mi e Gustine; Gustine Gun Club Comment
  UC1100691  Fimbristylis vahlii Herbert L. Mason and S. Galen Smith 1948-7-29 8246 Merced e Los Banos (salt slough at end of Turner Island road) Comment
  UC1100864  Scirpus americanus Herbert L. Mason and S. Galen Smith 1948-8-9 8298 Merced about 12 mi w Los Banos; w of Los Banos Comment
  UC1101033  Juncus dubius Herbert L. Mason and S. Galen Smith 1948-8-19 8384 Merced 1 mi w Snelling Comment
  UC1178834  Lotus wrangelianus Herbert L. Mason 1940-5-3 12254 Merced 2 mi ne Ortigalita Peak; South Coast Ranges, Ortigalita Canyon 304 Comment
  UC1178836  Linanthus ambiguus Herbert L. Mason 1940-5-3 12269 Merced nw of Ortigalita Peak; South Coast Ranges, Ortigalita Valley 426 Comment
  UC1178891  Triteleia laxa Herbert L. Mason 1940-5-5 12273 Merced w of Ortegalita; Inner South Coast Range, Piedra Azul Creek Comment
  UC1191367  Atriplex serenana var. serenana Herbert L. Mason and S. Galen Smith 1948-7-29 8232 Merced North Mercy Springs Road about 4 mi n Los Banos (San Joaquin Valley); , n of Los Banos Comment
  UC1191444  Ranunculus sceleratus Herbert L. Mason 1948-6-29 13578 Merced 5 mi n Volta; San Joaquin Valley Comment
  UC1191542  Lythrum hyssopifolia Herbert L. Mason, S. Galen Smith 1948-7-29 8251 Merced e of Los Banos (Delta Road just n of Salt Slough); Delta Road Comment
  UC1191611  Epilobium densiflorum Herbert L. Mason and S. Galen Smith 1948-8-9 8278 Merced about 10 mi w summit of Pacheco Pass; Pacheco Creek Comment
  UC1191706  Epilobium ciliatum subsp. ciliatum Herbert L. Mason and S. Galen Smith 1948-8-9 8280 Merced about 10 mi w summit of Pacheco Pass; Pacheco Creek Comment
  UC1191875  Cordylanthus mollis subsp. hispidus Herbert L. Mason and S. Galen Smith 1948-8-9 8306 Merced 2 mi n Dos Palos (along old Santa Fe grade) Comment
  UC1192178  Bidens frondosa Herbert L. Mason and S. Galen Smith 1948-8-12 8333 Merced 5 mi e of Gustine (San Joaquin Valley); San Joaquin Valley Comment
  UC775191  Lomatium macrocarpum Herbert L. Mason 1940-5-4 12270 a Merced n.w. Ortigalita Peak (Piedra Azul Creek); Inner South Coast Ranges, Piedra Azul Creek 304 Comment
  UC935731  Sagittaria montevidensis subsp. calycina Herbert L. Mason 1948-6-29 13579 Merced 5 mi n Volta; San Joaquin Valley Comment
  UC935768  Sagittaria montevidensis subsp. calycina Herbert L. Mason and S. Galen Smith 1948-7-27 8222 Merced 2 mi n Ingomar Comment
  UC971793  Limnanthes douglasii subsp. rosea Charles T. Mason Jr. 1949-3-31 1248 Merced 6 mi from U.S. Highway 99 (along road from Merced to Snelling) Comment
  CAS-BOT-BC172661  Atriplex lentiformis Herbert L. Mason; S. Galen Smith 1948-8-10 8317 Merced Mendota Pool, at entrance of Firebaugh canal, west side Comment
  CAS-BOT-BC233571  Navarretia prostrata Herbert L. Mason 1952-5-18 14292 Merced Santa Fe grade E of Los Banos [Banos], San Joaquin Valley Comment
  CAS-BOT-BC419349  Persicaria punctata Herbert L. Mason; S. Galen Smith 1948-8-9 8286 Merced Pacheco Creek, about 10 miles west of summit of Pacheco Pass Comment
  CAS-BOT-BC451524  Elodea canadensis Herbert L. Mason 1948-6-29 13589 Merced Delta road, 3 miles east of Los Banos [Banos] Comment
  CAS-BOT-BC452153  Potamogeton diversifolius Herbert L. Mason 1948-6-10 13591 Merced Delta road, 3 miles east of Los Banos [Banos] Comment
  CAS-BOT-BC456182  Najas guadalupensis Herbert L. Mason; S. Galen Smith 1948-7-30 8254 Merced About 7 miles northeast of junction of Merced and San Joaquin Rivers Comment
  CAS-BOT-BC456183  Najas guadalupensis Herbert L. Mason; S. Galen Smith 1948-7-30 8254 Merced About 7 miles northeast of junction of Merced and San Joaquin Rivers Comment
  POM312324  Bidens frondosa H. L. Mason, S. Galen Smith 1948-8-12 8333 Merced About 5 miles east of Gustine Comment
  POM312486  Atriplex lentiformis H. L. Mason, S. Smith 1948-8-10 8316 Merced Mendota Pool, at entrance of Firebaugh canal, west side. Comment
  POM312906  Polygonum coccineum H. L. Mason, S. Galen Smith 1948-8-10 8307 Merced Just W of S Dos Palos. Comment
  POM313003  Potamogeton pusillus H. L. Mason 1948-6-29 13584 Merced 2 miles N of Volta Comment
  RSA312629  Cuscuta denticulata H. L. Mason, Smith, S. Galen Smith 1948-8-19 8386 Merced Marsh, 1 mile west of Snelling Comment
  SEINET10546230  Asclepias vestita Herbert L. Mason 1940-5-5 Mason 12274 Merced Twin Peaks, Los Banos Creek, San Carlos Range 610 Comment
  UCD104072  Acmispon brachycarpus Herbert L. Mason 1940-5-3 12253 Merced Ortigalita Canyon, two miles northeast of Ortigalita Peak, South Coast Ranges. 304 Comment
  UCD123802  Chloropyron molle subsp. hispidum Herbert L. Mason; S. Galen Smith 1948-8-9 8306 Merced along Old Santa Fe Grade, 2 miles north of Dos Palos. Comment
  UCD126701  Nicotiana attenuata Herbert L. Mason; S. Galen Smith 1948-8-19 8364 Merced about 2 miles northeast of Merced on Snelling highway. Comment
  UCD137868  Anemopsis californica Herbert L. Mason; S. Galen Smith 1948-8-9 8296 Merced about 12 miles west of Los Banos. Comment
  UCD138038  Sagittaria montevidensis subsp. calycina Herbert L. Mason; S. Galen Smith 1948-8-11 8322 Merced Crane Ranch, south of junction of Merced and San Joaquin Rivers. Comment
  UCD138275  Potamogeton diversifolius Herbert L. Mason 1948-6-10 13591 Merced Delta road, 3 miles east of Los Banos. Comment
  UCD138286  Potamogeton pusillus Herbert L. Mason 1948-6-29 13581 Merced 5 miles north of Volta. Comment
  CAS-BOT-BC179876  Galeopsis tetrahit Herbert Louis Mason; Verne Grant 1947-7-12 13417 Modoc S end of W side road, Pit River Valley, S of Alturas. Comment
  CAS-BOT-BC190929  Epilobium pallidum Herbert Louis Mason; Verne Grant 1947-7-13 13441 Modoc Joseph Creek on Hwy 395. Comment
  CAS-BOT-BC190973  Epilobium densiflorum Herbert Louis Mason 1947-8-11 13495 Modoc Hwy 81, W margin of Lower Lake, near Modoc County boundary. Comment
  CAS-BOT-BC211350  Rumex lacustris Herbert Louis Mason; Verne Grant 1947-8-27 8309 Modoc South end of Clear Lake. Comment
  CAS-BOT-BC225025  Sanguisorba annua Herbert Louis Mason; Verne Grant 1947-7-13 13443 Modoc Joseph Creek on Highway 395, N of Davis Creek. Comment
  CAS-BOT-BC245129  Schoenoplectus americanus Herbert Louis Mason 1947-8-11 13491 Modoc Hwy 81, W margin of Lower Lake, near boundary with Lassen County. Comment
  CAS-BOT-BC49450  Madia glomerata Herbert Louis Mason 1947-8-11 13496 Modoc On Hwy 81, W margin of Lower Lake, near boundary between Lassen and Modoc counties. Comment
  CAS-BOT-BC58733  Plagiobothrys scouleri Herbert Louis Mason; Verne Grant 1947-7-12 13415 Modoc Pit River Valley, S of Alturas. Comment
  JEPS21904  Gratiola neglecta Herbert L. Mason and Verne Grant 1947-7-11 13374 Modoc irrigation ditch near w side road s Alturas (South Fork of Pit River); South Fork of Pit River Comment
  JEPS22036  Symphoricarpos rotundifolius var. rotundifolius Herbert L. Mason 1948-7-18 13619 Modoc Cedar Pass; Warner Mountains Comment
  NY493019  Ranunculus aquatilis var. diffusus H. L. Mason 1947-7-11 13370 Modoc Irrigation ditch by Jones' Lane, off Highway 395, south of Alturas Comment
  POM312490  Chenopodium salinum H. L. Mason 1947-8-12 13507 Modoc Junction of North and South forks of Pit River, Alturas. Comment
  POM312570  Plagiobothrys scouleri var. cusickii H. L. Mason, Verne Grant 1947-7-12 13415 Modoc Near south end of West Side Rd. along railroad tracks, Pit River Valley, south of Alturas Comment
  POM312625  Asperugo procumbens H. L. Mason, Verne Grant 1947-7-12 13416 Modoc Near south end of west side road, Pit River Valley, south of Alturas. Comment
  POM312894  Juncus orthophyllus H. L. Mason 1947-8-13 13534 Modoc Northeast side of F reservoir, north of Canby Comment
  POM312955  Azolla filiculoides Herbert L. Mason 1947-8-12 13503 Modoc Junction of North and South forks of Pit River, Alturas. Comment
  POM313031  Alisma gramineum H. L. Mason 1955-8-13 14653 -A Modoc Southwest side of Goose Lake Comment
  POM313044  Sagittaria latifolia H. L. Mason 1947-7-12 13413 Modoc Irrigation ditch near S end of road on west side of the Pit River Valley. Comment
  POM313190  Beckmannia syzigachne H. L. Mason 1947-7-11 13367 Modoc Irrigation ditch by Jones Lane, off Highway 395, south of Alturas Comment
  SACT001882  Poa nevadensis Herbert Mason, Malcolm Nobs 1949-5-29 Modoc 2 miles east of Adin. Comment
  SEINET200141 Image available Echinochloa crus-galli H. L. Mason 1947-8-12 13510 Modoc Junction of North and South forks of Pit River Alturas Comment
  SEINET6426068 Image available Bergia texana Herbert L. Mason 1947-1 13462 Modoc Southwest margin of Big Sage Reservoir, northwest of Alturas Comment
  UC1051434  Eryngium articulatum Herbert L. Mason 1955-8-14 14650 Modoc s. end Goose Lake Comment
  UC1051441  Downingia bacigalupii Herbert L. Mason 1955-8-14 14652 Modoc s end Goose Lake Comment
  UC1099836  Potamogeton pectinatus Herbert L. Mason 1947-8-11 13488 Modoc Kelley Hot Springs, on Alturas-Conby Highway Kelley Hot Springs Comment
  UC1100033  Potamogeton pusillus var. pusillus Herbert L. Mason, Verne Grant 1947-7-11 13382 Modoc 1 mi e of Likely (on road from Likely to Jess Valley) Comment
  UC1100067  Potamogeton nodosus Herbert L. Mason, Verne Grant 1947-7-12 13398 Modoc several mi s of Alturas (by Jones' Lane, off Hwy 3995) Comment
  UC1100112  Agrostis alba Herbert L. Mason and Verne Grant 1947-8-13 13533 Modoc meadow on ne side of reservoir n Canby; F Reservoir Comment
  UC1100228  Alopecurus aequalis Herbert L. Mason 1947-8-13 13520 Modoc n. of Canby (n.e. side of F reservoir) Comment
  UC1100414  Phleum pratense Herbert L. Mason and Verne Grant 1947-7-10 13358 Modoc 2 mi e Alturas (1/4 mi w of Dorris Reservoir); w of Dorris Reservoir Comment
  UC1100439  Carex atherodes Herbert L. Mason, Verne Grant 1947-7-11 13376 Modoc s Alturas (irrigation ditch near west side road); South Fork of Pit River Comment
  UC1100474  Carex praegracilis Herbert L. Mason, Verne Grant 1947-8-13 13535 Modoc n Canby (ne side of F Reservoir) Comment
  UC1100612  Eleocharis bella Herbert L. Mason 1947-8-13 13526 Modoc N of Canby (NE side of F reservoir) Comment
  UC1100626  Eleocharis acicularis Herbert L. Mason and Verne Grant 1947-7-12 13402 Modoc irrigation ditch by Jone's Lane (off Hwy 395, several mi s of Alturas) Comment
  UC1100766  Schoenoplectus acutus var. acutus Herbert L. Mason 1947-8-11 13489 Modoc on Highway 81 w margin Lower Lake (near boundary between Lassen and Modoc counties); w Margin Lower Lake Comment
  UC1100956  Juncus mexicanus Herbert L. Mason and Verne Grant 1947-7-12 13426 Modoc n of Likely (s loop of w side road) Comment
  UC1101297  Lemna turionifera Herbert L. Mason, Verne Grant 1947-7-12 13389 Modoc several mi s of Alturas (by Jones' Lane, off Highway 395) Comment
  UC1101364  Ranunculus aquatilis var. capillaceus Herbert L. Mason and Verne Grant 1947-7-11 13370 Modoc irrigation ditch by Jones' Lane (off Hwy 395, s of Alturas) Comment
  UC1101422  Limosella acaulis Herbert L. Mason 1947-8-12 13504 Modoc Junction of North and South Forks of Pit River Alturas (Alturas); Junction of North and South Forks of Pit River Comment
  UC1101476  Downingia laeta Herbert L. Mason and Verne Grant 1947-7-11 13369 Modoc s of Alturas (by Jones Lane, off Highway 395) Comment
  UC1101498  Myriophyllum sibiricum Herbert L. Mason and Verne Grant 1947-7-12 13385 Modoc Irrigation ditch by Jones' Lane, off Highway 395, several mi S of Alturas. Comment
  UC1101500  Myriophyllum sibiricum Herbert L. Mason and Verne Grant 1947-8-13 13531 Modoc n.e. side of F reservoir n. of Canby Comment
  UC1101517  Callitriche verna Herbert L. Mason and Verne Grant 1947-7-12 13383 Modoc several mi s Alturas (by Jones' Lane, off Highway 395) Comment
  UC1178969  Navarretia intertexta Herbert L. Mason 1947-7-13 13444 Modoc s of Goose Lake (Highway 395); Joseph Creek Comment
  UC1179104  Peraphyllum ramosissimum Herbert L. Mason 13359 Modoc s of Alturas (on Highway 395) Comment
  UC1191246  Polygonum douglasii subsp. douglasii Herbert L. Mason and Verne Grant 1937-7-13 13451 Modoc w end of pass near Goose Lake (on road to Fort Bidwell); Fandango Pass Comment
  UC1191304  Atriplex rosea Herbert L. Mason 1947-8-9 13485 Modoc e side Fairchild Swamp (n of Alturas); e side Fairchild Swamp, n of Alturas Comment
  UC1191419  Monolepis nuttalliana Herbert L. Mason and Verne Grant 1947-7-10 13339 Modoc 2 mi. e. Alturas (Dorris Reservoir); Dorris Reservoir Comment
  UC1191491  Potentilla rivalis Herbert L. Mason 1947-8-9 13476 Modoc n Alturas (e side of Fairchild Swamp); , n of Alturas Comment
  UC1191494  Potentilla rivalis Herbert L. Mason 1947-8-13 13518 Modoc n Canby (ne side of F reservoir); n of Canby, ne side of F reservoir Comment
  UC1191496  Potentilla rivalis Herbert L. Mason, Verne Grant 1947-7-12 13404 Modoc Irrigation ditch by Jones' Lane off Highway 395 several mi s Alturas; s of Alturas Comment
  UC1191585  Lythrum tribracteatum Herbert L. Mason, Verne Grant 1947-7-10 13324 Modoc 2 mi e of Alturas (Dorris Reservoir); Dorris Reservoir Comment
  UC1191616  Epilobium campestre Herbert L. Mason and Verne Grant 1947-7-10 13329 Modoc 2 miles e Alturas; Dorris Reservoir Comment
  UC1191649  Plagiobothrys mollis Herbert L. Mason 1947-8-9 13475 Modoc n Alturas (e side Fairchild Swamp); e side Fairchild Swamp Comment
  UC1191733  Epilobium brachycarpum Herbert L. Mason and Verne Grant 1947-7-10 13337 Modoc 2 mi e Alturas; Dorris Reservoir Comment
  UC1191755  Gayophytum diffusum subsp. parviflorum Herbert L. Mason and Verne Grant 1947-7-10 13334 a Modoc 2 mi e Alturas; Dorris Reservoir Comment
  UC1191843  Plagiobothrys cusickii Herbert L. Mason and Verne Grant 1947-7-12 13415 Modoc s of Alturas (near s end of w side road); Pit River Valley Comment
  UC1191957  Eryngium alismifolium Herbert L. Mason 1947-8-12 13511 Modoc Alturas, junction of N. and S. Forks of Pit River Comment
  UC1192069  Symphyotrichum bracteolatum Herbert L. Mason 1947-8-11 13494 Modoc on Highway 81, w margin of Lower Lake, near boundary betwn Lassen and Modoc Co. Lower Lake Comment
  UC1192121  Gnaphalium palustre Herbert L. Mason 1947-8-13 13521 Modoc ne side of F reservoir (n of Canby) Comment
  UC1192251  Solidago spectabilis Herbert L. Mason 1947-8-11 13497 Modoc On Highway 81, west margin of Lower Lake, near boundary, between Lassen and Modoc counties. Comment
  UCD136544  Symphyotrichum bracteolatum Herbert L. Mason 1947-8-11 13494 Modoc On Highway 81, west margin of Lower Lake, near boundary between Lassen and Modoc counties. Comment
  UCD137903  Alisma gramineum Herbert L. Mason 1955-8-13 14653 A Modoc southwest side of Goose Lake. Comment
  UCD143730  Schoenoplectus americanus Herbert L. Mason 1947-8-11 1349 Modoc on Highway 81, west margin of Lower Lake, near boundary between Lassen and Modoc counties. Comment
  CAS-BOT-BC245113  Amphiscirpus nevadensis Herbert Louis Mason 1947-8-15 13543 Modoc Mouth of Crane Creek on Willow Ranch, E side of Goose Lake. Comment
  CAS-BOT-BC247571  Muhlenbergia asperifolia Herbert Louis Mason 1947-8-15 13542 Modoc Mouth of Crane Creek on Willow Ranch. Comment
  CAS-BOT-BC58753  Plagiobothrys scouleri Herbert Louis Mason; Verne Grant 1947-7-12 13408 Modoc W side of South Fork of Pit River Valley, SW of Alturas. Comment
  CAS-BOT-BC58796  Plagiobothrys mollis var. mollis Herbert Louis Mason; Verne Grant 1947-7-12 13407 Modoc W side of South Fork of Pit River Valley, SW of Alturas. Comment
  JEPS13374  Castilleja linariifolia Herbert L. Mason 1955-8-14 14654 Modoc sw side Goose Lake (at Fletcher's Place) Comment
  POM312513  Psilocarphus oregonus H. L. Mason, Verne Grant 1947-7-13 13450 Modoc West end of Fandango Pass, near Goose Lake on road to Fort Bidwell. Comment
  POM312535  Polygonum douglasii H. L. Mason, Verne Grant 1937-7-13 13451 Modoc On Obsidian rubble, W end of Fandango Pass, near Goose Lake, on road to Fort Bidwell Comment
  POM312610  Boisduvalia densiflora var. densiflora H. L. Mason, Verne Grant 1947-7-13 13441 Modoc Joseph Creek on Highway 395, north of Davis Creek (east side of Goose Lake) Comment
  POM313052  Eleocharis acicularis var. acicularis H. L. Mason 1947-8-12 13512 Modoc Junction of North and South forks of Pit River, Alturas. Comment
  POM313115  Carex praegracilis H. L. Mason, Verne Grant 1947-7-12 13439 Modoc Corporation Ranch Headquarters, north of Likely. Comment
  POM313207  Muhlenbergia asperifolia H. L. Mason 1947-8-15 13542 Modoc Mouth of Crane Creek on Willow Ranch, east side of Goose Lake. Comment
Read comments
Aug 21 2013
  SEINET7297281 Image available Phragmites australis Herbert L. Mason 1947-1 13501 Modoc Highway 81, north of Modoc- Lassen County Line Comment
  UC1060644  Polygonum polygaloides subsp. kelloggii Herbert L. Mason 1957-7-6 14276 Modoc w Goose Lake; Rim Rock Comment
  UC1093678  Polygonum polygaloides subsp. confertiflorum H. L. Mason 1955-8-14 14657 Modoc n Everly Reservoir Comment
  UC1100157  Alisma plantago-aquatica Herbert L. Mason 1955-8-13 14653 C Modoc s end Goose Lake Comment
  UC1100158  Alisma plantago-aquatica Herbert L. Mason 1955-8-13 14651 B Modoc s end Goose Lake Comment
  UC1100808  Scirpus pungens Herbert L. Mason 1947-8-15 13547 Modoc mouth Crane Creek (on Willow Ranch, e side of Goose Lake); Goose Lake Comment
Read comments
Aug 18 2012
  UC1100809  Scirpus pungens Herbert L. Mason 1947-8-15 13544 Modoc e side Goose Lake (mouth of Crane Creek, on Willow Ranch) Comment
  UC1100887  Scirpus nevadensis Herbert L. Mason, Verne Grant 1947-7-12 13436 Modoc n Likely (Corporation Ranch Headquarters); , n of Likely Comment
  UC1100954  Juncus balticus Herbert L. Mason 1947-8-15 13546 Modoc e side Goose Lake (on Willow Ranch); , Mouth of Crane Creek Comment
  UC1101534  Elatine triandra Herbert L. Mason 1947-8-8 13472 Modoc nw Alturas (sw margin of Big Sage Reservior) Comment
  UC1178968  Navarretia intertexta Herbert L. Mason 1946-7-13 13440 Modoc s of Goose Lake (Highway 395); Joseph Creek Comment
  UC1191343  Chenopodium glaucum Herbert L. Mason 1947-8-15 13554 Modoc Crane Creek Goose Lake, Willow Ranch (mouth, e side of lake) Comment
  UC1191576  Epilobium campestre Herbert L. Mason 1947-8-15 13563 Modoc 11 mi from Davis Creek; Goose Lake, spring leading into w side Comment
  UC1191715  Epilobium brachycarpum Herbert L. Mason 1947-8-8 13458 Modoc n Big Sage Reservoir (nw of Alturas); Ingalls Swamp Comment
  UC1191743  Epilobium ciliatum subsp. ciliatum Herbert L. Mason 1947-8-15 13549 Modoc mouth of Crane Creek Goose Lake, Willow Ranch (e side of lake) Comment
  UC1191965  Hippuris vulgaris Herbert L. Mason 1947-8-15 13561 Modoc spring leading into w. side Goose Lake (11 mi. from Davis Creek) Comment
  UC1192131  Ericameria nauseosa var. oreophila Herbert L. Mason and Verne Grant 1947-7-12 13409 Modoc sw of Alturas (w side of the South Fork of Pit River Valley; Vernal pool); South Fork of Pit River Valley Comment
  UC1199811  Navarretia leucocephala subsp. minima Herbert L. Mason 1957-6-21 14705 Modoc w side Said Valley Comment
  UC1199837  Navarretia intertexta subsp. propinqua Herbert L. Mason 1946-7-13 13445 Modoc s of Goose Lake (near Highway 395); Joseph Creek Comment
  UCD134271  Madia glomerata Herbert L. Mason 1947-8-9 13483 Modoc on east side of Fairchild Swamp, north of Alturas. Comment
  UCD136503  Symphyotrichum frondosum Herbert L. Mason 1947-8-11 13487 Modoc Kelley Hot Springs, on Alturas-Conby Highway. Comment
  UCD138293  Zannichellia palustris Herbert L. Mason; Verne Grant 1947-7-12 13427 Modoc North of Likely. Comment
  UCD138321  Stuckenia striata Herbert L. Mason 1947-8-15 13540 Modoc Mouth of Crane Creek on Willow Ranch, east side of Goose Lake. Comment
  UCD140769  Carex praegracilis Herbert L. Mason; Verne Grant 1947-7-12 13439 Modoc Corporation Ranch Headquarters, north of Likely. Comment
  UCD48759  Scirpus nevadensis Herbert L. Mason; Verne Grant 1947-7-12 13436 Modoc Corporation Ranch Headquarters, north of Likely. Comment
  CAS-BOT-BC379366  Ranunculus aquatilis var. diffusus Herbert L. Mason 1948-9-4 13633 Mono Rush Creek, Mono Lake Comment
  NY34547  Pinus albicaulis H. L. Mason 1936-8-6 11519 Mono Hills between Saddlebag Lake and Conness Glacier 3200.4 Comment
  SACT002064  Puccinellia airoides Herbert Mason 1948-9-4 Mono Comment
  UC1056438  Saxifraga odontoloma Herbert L. Mason 1937-7-30 Mono above Lake Mary Comment
  UC1081531  Eucephalus breweri Herbert L. Mason 1936-7-29 11432 Mono n side of, (Conness Glacier) Mount Conness 3657 Comment
Read comments
Mar 5 2007
  UC1081541  Senecio hydrophilus Herbert L. Mason 1936-8-1 11495 Mono Mono Lake Sierra Nevada, Mono Lake 1981 Comment
  UC1081558  Eriogonum incanum Herbert L. Mason 1936-7-29 11433 Mono cirque below Conness Glacier (w of Saddlebag Lake); Sierra Nevada, Yosemite National Park 3200 Comment
  UC1081559  Arnica mollis Herbert L. Mason 1936-7-31 11477 Mono near Saddlebag Lake; Sierra Nevada, Yosemite National Park, Tioga Crest 3200 Comment
  UC1081577  Eriogonum brachyanthum Herbert L. Mason 1936-8-1 11498 Mono 3 mi n Mono Lake Comment
  UC1083136  Penstemon rostriflorus Herbert L. Mason 1936-8-1 11485 Mono Leevining Canyon Sierra Nevada, Yosemite National Park Comment
  UC1099858  Potamogeton gramineus Herbert L. Mason 1948-9-5 13671 Mono junction of Highway 108 and Highway 395 Comment
  UC1099975  Zannichellia palustris Herbert L. Mason 1948-9-4 13635 Mono Mono Lake, Rush Creek Comment
  UC1100214  Beckmannia syzigachne Herbert L. Mason 1948-9-4 13669 b Mono Rush Creek Mono Lake Comment
  UC1100389  Polypogon monspeliensis Herbert L. Mason 1948-9-4 13644 Mono Rush Creek Mono Lake; , Rush Creek Comment
  UC1100764  Scirpus acutus var. occidentalis Herbert L. Mason 1948-9-4 13648 Mono Rush Creek Mono Lake, Rush Creek Comment
  UC1100882  Scirpus nevadensis Herbert L. Mason 1948-9-4 13667 Mono Rush Creek Mono Lake, Rush Creek Comment
  UC1101134  Polygonum amphibium var. stipulaceum Herbert L. Mason 1948-9-5 13675 Mono junction of Hwy 108 and Highway 395 Comment
  UC1101432  Limosella acaulis Herbert L. Mason 1945-9-7 12691 Mono margin of pond below Tioga Lake; Sierra Nevada, margin of pond below Tioga Lake Comment
  UC1191890  Mimulus guttatus Herbert L. Mason 1948-9-4 13646 Mono Rush Creek Mono Lake Comment
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Aug 25 2008
  UC1192075  Symphyotrichum frondosum Herbert L. Mason 1948-9-4 13643 Mono Rush Creek Mono Lake Comment
  UC1240215  Gentianopsis holopetala C. T. Mason 1953-8-22 1513 Mono along Slate Creek at Carnegie Institution Timberline Station; , Slate Creek 3048 Comment
  UC1275782  Gilia lottiae Herbert L. Mason 1963-6-24 15219 Mono Paoha Island Mono Lake, Paoha Island Comment
  UC1275788  Chaenactis xantiana Herbert L. Mason 1963-6-24 15213 Mono Paoha Island Mono Lake, Paoha Island Comment
  UC1275789  Agrostis Herbert L. Mason 1963-6-24 15216 Mono Paoha Island Mono Lake Comment
  UC1275795  Descurainia pinnata Herbert L. Mason 1963-6-24 15210 Mono Paoha Island; Mono Lake Comment
  UC561009  Claytonia nevadensis H. L. Mason 1936-7-31 11462 Mono e of Saddlebag Lake (Tioga Crest); Sierra Nevada, Tioga Crest 3474 Comment
  UC583740  Angelica lineariloba Herbert L. Mason 1936-8-1 11482 Mono Leevining Canyon Comment
  UC641783  Rumex salicifolius var. denticulatus H. L. Mason 1936-7-31 11476 Mono near Saddlebag Lake; Sierra Nevada, Tioga Crest 3078 Comment
  UC641822  Eriogonum ovalifolium var. nivale H. L. Mason 1936-7-31 11465 Mono e Saddlebag Lake (Tioga Crest); Sierra Nevada, Tioga Crest Comment
  UC642683  Calyptridium umbellatum H. L. Mason 1936-7-31 11463 Mono e of Saddlebag Lake (Tioga Crest); Sierra Nevada, Tioga Crest 3474 Comment
  UC642886  Sagina saginoides H. L. Mason 1936-7-31 11470 Mono Tioga Crest e. of Saddlebag Lake; Sierra Nevada, Tioga Pass region 3352 Comment
  UC712178  Castilleja nana Herbert L. Mason 1936-7-31 11454 Mono e of Saddlebag Lake (Tioga Crest); Sierra Nevada, Tioga Crest Comment
  UC712194  Arnica nevadensis Herbert L. Mason 1936-7-31 11469 Mono near Saddlebag Lake; Sierra Nevada, Tioga Crest 3291 Comment
  UC712380  Eriogonum rosense H. L. Mason 1936-7-31 11455 Mono e Saddlebag Lake (Tioga Crest); Sierra Nevada, Tioga Crest 3474 Comment
  UCD120976  Tiquilia nuttallii Herbert L. Mason 1948-9-5 13680 Mono Mono craters. Comment
  UCD85128  Glyceria elata H. L. Mason 1936-8-1 11489 Mono Leevining Canyon. East of Tioga Pass. Comment
  NY34548  Pinus balfouriana H. L. Mason 1936-8-6 11519 Mono This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
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Sep 6 2011
  POM312566  Tiquilia nuttallii H. L. Mason 1948-9-5 13680 Mono Mono craters. Comment
  SEINET7368216 Image available Pinus albicaulis Herbert L. Mason 1936-1 11519 Mono hills between Saddlebag Lake and Conness Glacier. Sierra Nevada 3200 Comment
  UC1025288  Draba oligosperma var. oligosperma Herbert L. Mason 1936-7-28 11406 Mono Dana Plateau Mono National Forest, Dana Plateau Comment
  UC1275787  Collinsia parviflora Herbert L. Mason 1963-7-4 15225 b Mono near Artesian Well (northeastrn shore of Mono Lake, Sulphur Springs); Mono Lake, Sulphur Springs Comment
  UC712311  Astragalus purshii var. lectulus Herbert L. Mason 1936-7-28 11413 Mono vicinity Mount Dana (Dana Plateau); vicinity Mount Dana, Dana Plateau 3535 Comment
  CAS-BOT-BC109003  Mucronea californica H. L. Mason 1923-6-23 544 Monterey Carmel River, ten miles above Carmel. Comment
  CAS-BOT-BC286924  Ericameria ericoides Herbert L. Mason 1928-10-3 4993 a Monterey 10 miles up Carmel River Comment
  CAS-BOT-BC362510  Rafinesquia californica H. L. Mason 1921-5-7 s.n. Monterey Rancho del Monte, Carmel River Comment
  CAS-BOT-BC376019  Stylocline gnaphaloides H. L. Mason 1933-4-22 7214 Monterey Pajaro Hills Comment
  CAS-BOT-BC73993  Turritis glabra H. L. Mason 1921-5-7 s.n. Monterey Rancho del Monte. Carmel River. Comment
  NY16757  Cupressus macrocarpa H. L. Mason 1934-10-21 10023 Monterey Point Lobos Comment
  POM256508  Rosa californica H. L. Mason, Edward Lee 1935-6-16 9362 Monterey Point Lobos State Park. Comment
  POM256509  Eriogonum parvifolium var. parvifolium H. L. Mason, Edward Lee 1934-10 9062 Monterey Point Lobos State Park Comment
  RSA65176  Chorizanthe douglasii H. L. Mason 1923-6-23 542 Monterey 10 miles above Carmel Comment
  SBBG64232  Eriogonum vimineum H. L. Mason 1934-9-8 Monterey 3 mi N of the Indians, San Antonio River 548 Comment
  SEINET190350 Image available Logfia filaginoides H. L. Mason 1933-1 7215 Monterey Pajaro Hills Comment
  UC1039518  Galium californicum subsp. californicum H. L. Mason 1932-4-28 7037 Monterey Pajaro Hills Comment
  UC1076234  Lupinus arboreus H. L. Mason 1923-6-23 569 Monterey Del Monte Comment
  UC1076343  Equisetum X ferrissii Herbert L. Mason 1930-10-25 5744 Monterey headwaters of Arroyo Seco; Santa Lucia Mts. Comment
  UC1076563  Lupinus formosus H. L. Mason 1928-10-3 4987 Monterey Carmel Valley Comment
  UC1100861  Scirpus maritimus Herbert L. Mason 1928-10-2 4982 Monterey one mi w Salinas (margins of pools in the Salinas River); Salinas River, w of Salinas Comment
  UC1111012  Muhlenbergia rigens Herbert L. Mason 1930-10-25 5746 Monterey Headwaters of the Arroyo Seco Santa Lucia Mountains Comment
  UC1179021  Abies bracteata Herbert L. Mason 1930-10-25 5757 Monterey headwaters Arroyo Seco; Santa Lucia Mountains, Arroyo Seco Comment
  UC1191163  Malacothamnus fremontii Herbert L. Mason November 1931 5893 Monterey s mi above Mission; Carmel River Comment
  UC1191224  Caulanthus coulteri var. lemmonii Herbert L. Mason 1952-4-5 14201 Monterey 6 mi se Jolon (settlement near Lockwood); se of Jolon, settlement near Lockwood Comment
  UC1540464  Ericameria ericoides Herbert L. Mason 1936-9-13 11525 Monterey nine mi n Salinas; Prunedale Comment
  UC555411  Lotus benthamii H. L. Mason 1923-6-23 558 Monterey Point Lobos Comment
  UC565536  Malacothrix saxatilis var. arachnoidea H. L. Mason 1929-10-3 4986 Monterey 4 mi above Mission; Carmel River Comment
  UC565553  Stephanomeria elata H. L. Mason 1930-10-25 5745 Monterey Headwaters of the Arroyo Seco Santa Lucia Mountains Comment
  UC566659  Senecio flaccidus var. douglasii H. L. Mason 1928-10-3 4991 Monterey 10 mi e Carmel Mission (along Carmel River); Carmel River Comment
  UC566761  Eriophyllum confertiflorum var. confertiflorum H. L. Mason 1932-4-28 7043 Monterey Pajero Hills Pajaro Hills Comment
  UC566765  Eriophyllum confertiflorum var. confertiflorum H. L. Mason 1923-6-23 549 Monterey Carmel River Comment
  UC566799  Lomatium parvifolium H. L. Mason 1932-4-28 7039 Monterey Pajaro Hills Comment
  UC566904  Forestiera pubescens H. L. Mason 1923-6-22 536 Monterey Bradley Comment
  UC566946  Centaurium exaltatum H. L. Mason 1928-10-2 4978 Monterey 1 mi below Salinas; Salinas River Comment
  UC570704  Nicotiana glauca H. L. Mason 1928-10-2 4983 Monterey 1 mi below Salinas (Salinas River); Salinas River Comment
  UC570709  Nicotiana quadrivalvis H. L. Mason 1928-10-2 4974 Monterey 1 mi below Salinas (Salinas River); Salinas River Comment
  UC570814  Ribes menziesii H. L. Mason 1929-3-2 5037 Monterey deep canyon just s Carmel Highlands Comment
  UC570819  Ribes malvaceum Herbert L. Mason 1929-3-1 5012 Monterey 10 mi above Mission; Carmel Valley Comment
  UC570897  Boykinia occidentalis Herbert L. Mason 1930-10-25 5754 Monterey headwaters of Arroyo Seco , headwaters Arroyo Seco (Santa Lucia Mountains) Comment
  UC570961  Ribes speciosum H. L. Mason 1929-3-1 5018 Monterey 25 mi up river on the Jamesburg to Arroyo Seco Road Carmel River Comment
  UC571019  Brickellia californica H. L. Mason 1930-10-25 5770 Monterey banks of San Antonio River San Antonio River Comment
  UC571229  Arctostaphylos tomentosa subsp. rosei H. L. Mason 1927-7-30 3993 Monterey Carmel Comment
  UC571230  Arctostaphylos tomentosa subsp. tomentosa H. L. Mason November 1931 5889 Monterey road between Monterey and Carmel (type locality) Comment
  UC581184  Stylomecon heterophylla H. L. Mason 1935-4-21 8267 Monterey Carmel Canyon Comment
  UC581496  Viola pedunculata H. L. Mason 1929-3-1 5017 Monterey 25 miles up the Carmel River (Jamesburg-Arroyo Seco Road) Comment
  UC634540  Salix lasiolepis H. L. Mason Nov 1931 5879 Monterey road between Monterey and Carmel Comment
  UC634815  Garrya elliptica H. L. Mason Nov 1931 5884 Monterey road between Monterey and Carmel Comment
  UC634894  Crocanthemum scoparium var. scoparium H. L. Mason 1931-11-1 5892 Monterey two mi above Carmel Mission; Carmel River Comment
  UC635049  Chorizanthe pungens var. pungens Herbert L. Mason 1923-6-23 565 Monterey Del Monte Comment
  UC635070  Lastarriaea coriacea Herbert L. Mason 1923-6-23 545 Monterey 10 mi above Carmel (Carmel River); Carmel River Comment
  UC672501  Veronica anagallis-aquatica H. L. Mason 1928-10-3 4994 Monterey 4 mi from The Mission (along Carmel River); Carmel River Comment
  UC672626  Adiantum capillus-veneris H. L. Mason 1930-10-25 5763 Monterey sandstone hill 6 mi e Santa Lucia Ranger Station Comment
  UC673439  Castilleja H. L. Mason 1932-4-28 7034 Monterey Pajaro Hills Comment
  UC908935  Gilia tenuiflora subsp. tenuiflora Herbert L. Mason 1933-4-22 7211 Monterey Pajaro Hills Comment
  UC908975  Gilia achilleifolia subsp. multicaulis Herbert L. Mason, Edward Lee April, 1935 9437 Monterey Point Lobos State Park Comment
  UC908987  Gilia achilleifolia subsp. achilleifolia Herbert L. Mason, Edward Lee April, 1935 Monterey Point Lobos State Park Comment
  UC912274  Deinandra corymbosa Herbert L. Mason 1932-4-28 7041 Monterey Pajaro Hills Comment
  UC912385  Rhamnus californica subsp. californica Herbert L. Mason 1930-10-25 5742 Monterey Headwaters of Arroyo Seco Santa Lucia Mountains Comment
  UCD45057  Quercus agrifolia Herbert L. Mason 1931-4-26 5858 Monterey Pajaro Hill, Monterey County. Comment
  UCLA69735  Salvia sonomensis H. L. Mason 1930-10-25 5748 Monterey Headwaters of Arroyo Seco; Santa Lucia Mountains Comment
  CAS-BOT-BC342430  Logfia gallica H. L. Mason 1932-4-28 7042 Monterey Pajaro Hills Comment
  POM209236  Eriogonum roseum H. L. Mason 1934-9-8 s.n. Monterey 3 mi. southeast of 'The Indians' San Antonio River. Dry meadows under oaks. 549 Comment
  POM256324  Juncus bufonius var. congestus H. L. Mason, Edward Lee 1935-6-15 9150 Monterey Point Lobos State Park. Comment
  POM256502  Clarkia bottae H. L. Mason, Edward Lee 1935-6-15 9339 Monterey Point Lobos State Park. Comment
  SEINET10605896  Hainardia cylindrica Mason 1935-6-15 Mason 9041 Monterey Mound Meadow, Point Lobos State Park. Comment
  SEINET10966026  Cupressus macrocarpa Herbert L. Mason 1934-10-21 Mason 10023 Monterey On granite headland, Point Lobos. Comment
  UC1111575  Psilocarphus brevissimus var. brevissimus Herbert L. Mason 1938-5-6 11766 Monterey outside Jolon (at the junction to Indian Road (Santa Lucia Park)) Comment
  UC1111606  Downingia cuspidata Herbert L. Mason 1938-5-6 11767 Monterey outside of Jolon (at the junction to Indian Road); Santa Lucia Park Comment
  UC570813  Ribes amarum Herbert L. Mason 1929-3-3 5038 Monterey 4 mi e Jamesburg Post Office; Santa Lucia Mts. Comment
  UC634716  Epilobium ciliatum subsp. watsonii H. L. Mason September, 1930 5905 Monterey between Watsonville and Castroville (where small stream enters slough); Elkhorn Slough Comment
  UC907958  Linanthus Herbert L. Mason 1938-5-6 11764 Monterey woodland outside of Jolon at the junction to Indians Road Comment
  UC908686  Linanthus parviflorus Herbert L. Mason 1938-5-7 11761 Monterey King City to Jolon; Jolon Grade Comment
  UC912303  Verbena lasiostachys var. lasiostachys H. L. Mason 1934-9-8 8149 Monterey near The Indians; Santa Lucia Mts 609 Comment
  UC912331  Deinandra lobbii Herbert L. Mason 1930-10-25 5778 Monterey foothills between Jolon and Santa Lucia Ranger Station along San Antonio River; Santa Lucia Mountains Comment
  UC912381  Ceanothus integerrimus Herbert L. Mason 1931-4-19 5848 Monterey near Santa Lucia Ranger Station Santa Lucia Mts. Comment
  CAS-BOT-BC134982  Phoradendron bolleanum H. L. Mason; L. Constance 1939-12-21 s.n. Napa above St. Helena Creek on the shoulder of Mt. St. Helena on the Middletown-Calistoga road to Lake County line Comment
  JEPS21187  Cupressus macnabiana H. L. Mason 1925-1-22 1208 Napa Pope Canyon Comment
  POM224211  Fremontodendron californicum H. L. Mason 1935-5-30 10009 Napa Four miles north of Knoxville Mines. Comment
  UC1083214  Cupressus sargentii Herbert L. Mason 1926-1-2 2606 Napa Toll House Canyon Mt. St. Helena, Toll House Canyon Comment
  UC1178880  Kickxia elatine Herbert L. Mason 1942-9-29 12557 Napa 2 mi n Calistoga (bed of Napa River); Napa River Comment
  UC1199839  Apocynum cannabinum Herbert L. Mason 1942-9-29 12559 Napa ca. 1 mi. n. Rutherford (edge of Beaulieu Ranch) Comment
  UC555288  Adenostoma fasciculatum H. L. Mason 1925-1-22 1203 Napa Wooden Valley Grade Comment
  UC634548  Salix exigua var. hindsiana H. L. Mason 1926-3-14 2719 Napa along stream in grove Mt. St. Helena Comment
  UC635357  Delphinium nudicaule H. L. Mason 1926-3-14 2723 Napa Mount Saint Helena Comment
  UC907816  Linanthus dichotomus Herbert L. Mason 1933-4-30 7230 Napa near Aetna Springs Comment
  UC908780  Linanthus parviflorus Herbert L. Mason 1933-4-30 7221 Napa n of Aetna Springs (near Napa-Lake County line) Comment
  UC971717  Linanthus dichotomus Herbert L. Mason 1942-5-24 12540 Napa 8 mi s Pope Valley Store Comment
  UC971874  Limnanthes douglasii subsp. douglasii Charles T. Mason Jr. 1948-5-8 1182 Napa Pope Valley Comment
  SEINET5518602  Fremontodendron californicum subsp. napense Herbert L. Mason 1935-1 10009 Napa Four miles north of Knoxville Mines Comment
  SEINET8729290 Image available Collomia diversifolia Herbert L. Mason 1948-1 13570 Napa Near head of Butts Canyon Comment
  UC1111581  Psilocarphus brevissimus var. brevissimus Herbert L. Mason 1935-5-30 2837 Napa just s Napa State Hospital Comment
  UC1191154  Trichostema laxum Herbert L. Mason 1936-9-19 11540 Napa St. Helena Creek Comment
  UC570869  Lithophragma heterophyllum Herbert L. Mason 1926-3-14 2721 Napa Old Toll road sw side Mt. St. Helena; sw side of Mt. St. Helena Comment
  UC573154  Amsinckia intermedia Herbert L. Mason 1926-3-20 2755 Napa Calistoga Comment
  UC581134  Micropus californicus var. californicus H. L. Mason 1934-4-30 8103 Napa w side Wooden Valley Grade (near summit) Comment
  UC592162  Osmorhiza berteroi H. L. Mason 1926-3-22 2788 Napa between Calistoga to Petrified Forest Comment
  UC623311  Eriogonum compositum var. compositum H. L. Mason 1939-5-18 12101 Napa near St. Helena (near summit of Spring Mountain Grade); Spring Mountain Grade Comment
  UC634870  Scutellaria californica H. L. Mason 1934-4-30 8106 Napa 5 mi s of Putah Creek (tributary of Putah Creek, Napa) Comment
  UC673560  Corallorhiza striata H. L. Mason 1926-3-22 2787 Napa near base of grade from Calistoga to Petrified Forest Comment
  UC908613  Gilia tricolor subsp. tricolor Herbert L. Mason 1926-3-14 2731 Napa Mount St. Helena Comment
  UC908883  Navarretia mellita Herbert L. Mason 1935-5-30 Napa ridge between Lower Lake and Knoxville (Napa and Lake counties) Comment
  UC912546  Packera eurycephala var. eurycephala Herbert L. Mason 1934-4-30 8108 Napa Pope Canyon Comment
  CAS-BOT-BC20576  Carex disperma Herbert L. Mason 1952-8-16 14469 Nevada Sierra Nevada. Sage Hen Creek. Meadow opposite University of California Trout Laboratory. 1981 Comment
  CAS-BOT-BC361773  Psilocarphus brevissimus var. brevissimus Herbert L. Mason 1952-7-19 14429 Nevada Sierra Nevada. Meadow opposite University of California Trout Laboratory. Sage Hen Creek 1981 Comment
  CAS-BOT-BC361774  Psilocarphus brevissimus var. brevissimus Herbert L. Mason 1952-7-19 14429 Nevada Sierra Nevada. Meadow opposite University of California Trout Laboratory. Sage Hen Creek 1981 Comment
  CAS-BOT-BC76260  Drosera anglica Herbert L. Mason 1952-8-16 14464 Nevada Sierra Nevada. Sage Hen Creek. Meadow opposite University of California Trout Laboratory. 1981 Comment
  SEINET11601415 Image available Madia glomerata H. L. Mason 1952-7-19 14413 Nevada Sierra Nevada, Sage Hen Creek, meadow opposite University of California Trout Laboratory 1981 Comment
  UC1093644  Polygonum douglasii subsp. spergulariiforme Herbert L. Mason 1957-7-7 14728 Nevada sw Hobart Mills; Prosser Meadows Comment
  UC1106320  Epilobium hallianum Herbert L. Mason, B. Fuller, and H. Whisler 1958-7-13 13 Nevada one mi w University of California Trout Laboratory (12 miles north of Truckee); Sierra Nevada, Sage Hen Creek 1981 Comment
  UC1106323  Allium validum Herbert L. Mason, B. Fuller, H. Whisler 1958-7-13 20 Nevada 1 mi w Unniversity of California Trout Laboratory (peat meadow back of stream, 12 mi n of Truckee); Sierra Nevada, Sage Hen Creek 1981 Comment
  UC1106333  Trifolium wormskioldii Herbert L. Mason, B. Fuller, and H. Whisler 1958-7-22 16 Nevada 1 mi w University of California Trout Laboratory (Sage Hen Creek, 12 mi n of Truckee); Sierra Nevada Comment
  UC1177529  Veronica americana Herbert L. Mason, B. Fuller, H. Whisler 1958-7-13 26 Nevada 1 mi w of University of California Trout Laboratory (12 mi n of Truckee, Sage Hen Creek); Sierra Nevada, Sage Hen Creek 1981 Comment
  UC1177537  Cirsium scariosum var. americanum Herbert L. Mason, B. Fuller and H. Whisler 1958-7-23 44 Nevada one mi w University of California Trout Laboratory (12 mi n of Truckee); Sierra Nevada, Sage Hen Creek 1981 Comment
  UC1177538  Mimulus guttatus Herbert L. Mason, B. Fuller, H. Whisler 1958-7-23 41 Nevada 1 mi w University of California Trout Laboratory (12 mi n of Truckee); Sierra Nevada, Sage Hen Creek 1981 Comment
  UC1178955  Polygonum polygaloides subsp. kelloggii Herbert L. Mason 1952-7-10 14311 Nevada 1 mi w University of California Trout Laboratory (12 mi n of Truckee); Sierra Nevada, Sage Hen Creek 1981 Comment
  UC1179057  Delphinium Herbert L. Mason Jul 7 1939-Jul 8 1939 12147 Nevada 3 mi w Donner Summit 2072 Comment
  UC1191138  Mimulus leptaleus Herbert L. Mason Jul 7 1939-Jul 8 1958 12157 Nevada 3 mi w Donner Summit 2072 Comment
  UC908436  Navarretia leptalea subsp. bicolor Herbert L. Mason Jul 7 1939-Jul 8 1939 12148 Nevada three mi w Donner Summit; w of Donner Summit 2072 Comment
  UC908723  Collomia heterophylla Herbert L. Mason 1926-5-29 3278 Nevada 5 mi s Grass Valley; Rattlesnake Creek 609 Comment
  UC963772  Navarretia divaricata Herbert L. Mason Jul 7 1939-Jul 8 1939 12146 Nevada 3 mi w Donner Summit 2072 Comment
  UC965491  Elymus trachycaulus Herbert L. Mason 1952-8-16 14475 Nevada meadow opposite University of California Trout Laboratory; Sage Hen Creek 1981 Comment
  UC965497  Muhlenbergia filiformis Herbert L. Mason 1952-7-10 14312 Nevada old drained spagnum bog in meadow one mi w University of California Trout Laboratory; Sage Hen Creek 1981 Comment
  UC965511  Ranunculus orthorhynchus var. orthorhynchus Herbert L. Mason 1952-7-11 14335 Nevada 1 mi w University of California Trout Laboratory; Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965515  Gentiana newberryi var. tiogana Herbert L. Mason 1952-8-16 14472 Nevada meadow opposite University of California Trout Laboratory; Sierra Nevada 1981 Comment
  UC965517  Navarretia intertexta subsp. propinqua Herbert L. Mason 1952-7-16 14362 Nevada 1 mi w University of California Trout Laboratory; Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965522  Lemna trisulca Herbert L. Mason 1952-7-19 14425 Nevada meadow opposite California Trout Laboratory (Sage Hen Creek); Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965530  Navarretia divaricata Herbert L. Mason 1952-7-16 14360 Nevada 1 mi w Univ. of Calif. Trout Laboratory; Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965542  Gentianopsis simplex Herbert L. Mason 1952-8-16 14473 Nevada meadow opposite U.C. Trout Lab. (Sage Hen Creek); Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965543  Hypericum formosum var. scouleri Herbert L. Mason 1952-8-16 14470 Nevada meadow opposite U.C. Trout Lab. (Sage Hen Creek); Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965544  Spiranthes romanzoffiana Herbert L. Mason 1952-8-16 14485 Nevada meadow opposite University of California Trout Laboratory; Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965549  Mitella pentandra Herbert L. Mason 1952-7-18 14402 Nevada upstream from University of California Trout Laboratory; Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965551  Saxifraga oregana Herbert L. Mason 1952-7-11 14327 Nevada 1 mi w of University of California Trout Laboratory (Sage Hen Creek); Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965557  Cardamine breweri Herbert L. Mason 1952-7-10 14317 Nevada meadow one mi w University of California Trout Laboratory (Sage Hen Creek); Sierra Nevada, , UC Trout Laboratory 1981 Comment
  UC965561  Ivesia sericoleuca Herbert L. Mason 1952-7-19 14412 Nevada Sage Hen Creek Sierra Nevada (meadow opposite Univ. of Calif. Trout Laboratory) 1981 Comment
  UC965570  Symphyotrichum spathulatum Herbert L. Mason 1952-8-16 14474 Nevada meadow opposite University of California Trout Laboratory; Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965578  Symphyotrichum spathulatum Herbert L. Mason 1952-8-16 14489 Nevada meadow opposite of University of California Trout Laboratory; Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965592  Chenopodium atrovirens Herbert L. Mason 1952-7-19 14407 Nevada meadow opposite University of California Trout Laboratory; Sage Hen Creek 1981 Comment
  UC965593  Carex cusickii Herbert L. Mason 1952-7-19 14416 Nevada meadow opposite University of California Trout Laboratory; Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965594  Carex cusickii Herbert L. Mason 1952-8-16 14482 Nevada meadow opposite University of California Trout Laboratory; Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965600  Scirpus microcarpus Herbert L. Mason 1952-7-19 14424 Nevada meadow opposite University of California Trout Laboratory (Sage Hen Creek); Sierra Nevada, , <UC> Trout Laboratory 1981 Comment
  UC965608  Carex angustata Herbert L. Mason 1952-7-11 14321 Nevada 1 mi w University of California Trout Laboratory; Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965612  Carex utriculata Herbert L. Mason 1952-7-19 14434 Nevada meadow opposite University of California Trout Laboratory; Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965614  Carex utriculata Herbert L. Mason 1952-8-16 14483 Nevada meadow opposite University of California Trout Laboratory; Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965621  Montia chamissoi Herbert L. Mason 1952-7-10 14319 Nevada 1 mi w of University of California Trout Laboratory (Sage Hen Creek); Sierra Nevada , Sage Hen Creek 1981 Comment
  UC965625  Carex utriculata Herbert L. Mason 1952-7-19 14415 Nevada meadow opposite University of California Trout Laboratory; Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965636  Rumex salicifolius var. salicifolius Herbert L. Mason 1952-7-18 14395 Nevada upstream Univ. of Calif Trout Laboratory; Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965641  Collinsia parviflora Herbert L. Mason 1952-7-16 14369 Nevada 1 mi w of University of California Trout Laboratory (Sage Hen Creek); Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965647  Veronica peregrina subsp. xalapensis Herbert L. Mason 1952-7-16 14368 Nevada 1 mi w of University of California Trout Laboratory (Sage Hen Creek); Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965653  Luzula cascadensis Herbert L. Mason 1952-7-18 14398 Nevada Upstream from University of California Trout Laboratory (Sage Hen Creek); Sierra Nevada, , Univ of California Trout Labo 1981 Comment
  UC965654  Juncus howellii Herbert L. Mason 1952-7-16 14349 Nevada 1 mi w University of California Trout Laboratory; Sierra Nevada, Sage Hen Creek 1981 Comment
  CAS-BOT-BC119824  Carex nebrascensis Herbert L. Mason 1952-7-16 14348 Nevada One mi W of Univ of CA Trout Laboratory. Sage Hen Creek. 1981 Comment
  CAS-BOT-BC31853  Carex microptera Herbert L. Mason 1952-7-19 14421 Nevada Meadow opposite UC Trout Laboratory, Sage Hen Creek. 1981 Comment
  CAS-BOT-BC420026  Polygonum polygaloides subsp. kelloggii Herbert L. Mason 1952-7-10 14311 Nevada Sierra Nevada. One mile west of University of California Trout Laboratory (12 miles north of Truckee). Sage Hen [Sagehen] 1981 Comment
  CAS-BOT-BC97551  Symphyotrichum ascendens Herbert L. Mason 1952-8-16 14474 Nevada Meadow opposite University of California Trout Laboratory, [Sage Hen] Sagehen Creek 1981 Comment
  POM285051  Ranunculus orthorhynchus H. L. Mason 1952-7-11 14335 Nevada Sage Hen Creek, Old drained sphagnum bog in meadow 1 mile W of University of California Trout Laboratory. 1982 Comment
  POM285054  Ranunculus uncinatus var. parviflorus H. L. Mason 1952-7-16 14354 Nevada Sage Hen Creek, 1 mile W of University of California Trout Laboratory. 1982 Comment
  POM310935  Camissonia subacaulis H. L. Mason 1952-7-16 14359 Nevada Sage Hen Creek, 1 mile W of University of California Trout Laboratory. 1982 Comment
  RSA125792  Myosurus aristatus H. L. Mason 1952-7-10 14310 Nevada Sage Hen Creek, one mile west of University of California Trout Laboratory. 1982 Comment
  SEINET11601356 Image available Madia exigua H. L. Mason 1958-7-16 14371 Nevada Sage Hen Creek, peat meadow back of stream, one mile west of University of California Trout Laboratory 1981 Comment
  SEINET11602222 Image available Oreostemma alpigenum var. andersonii H. L. Mason 1952-7-11 14322 Nevada Bog at head of meadow one mile west of University of California Trout Laboratory, Sage Hen Creek 1981 Comment
  SEINET13328859  Carex athrostachya H. L. Mason 1952-8-16 14459 Nevada [Sierra Nevada] Sage Hen Creek, meadow opposite University of California Trout Laboratory 1981 Comment
  SEINET13351343  Carex disperma H. L. Mason 1952-8-16 14469 Nevada Sierra Nevada, Sage Hen Creek, meadow opposite University of California Trout Laboratory 1981 Comment
  SEINET6175240  Juncus orthophyllus H. L. Mason 1952-8-16 14467 Nevada Sierra Nevada, Sage Hen Creek, meadow opposite University of California Trout Laboratory 1981 Comment
  SEINET6186011  Juncus howellii H. L. Mason 1952-7-16 14349 Nevada Sierra Nevada, Sage Hen Creek, adjacent to stream which arises from large spring in meadow one mile west of University of California Trout Laboratory 1981 Comment
  SEINET8715386 Image available Lemna trisulca Herbert L. Mason 1952-1 14320 Nevada Old drained bog in meadow one mile west of University of California Trout Laboratory. Sage Hen Creek, Nevada County Altitude ca. 6500 feet. 1981 Comment
  UC672139  Camassia quamash subsp. breviflora Herbert L. Mason 1926-5-29 3300 Nevada Truckee River; Sierra Nevada, Truckee River Comment
  UC753415  Nemophila maculata Herbert L. Mason 1947-1 Nevada Soda Springs Road Comment
  UC908170  Phlox gracilis Herbert L. Mason 1926-5-29 3292 Nevada 3 mi w Cisco; Crystal Lake 1767 Comment
  UCD122979  Castilleja miniata Herbert L. Mason 1952-7-18 14399 Nevada Sage Hen Creek, one mile west of University of California Trout Laboratory (12 miles north of Truckee). 1981 Comment
  CAS-BOT-BC400329  Anemopsis californica Herbert L. Mason 1926-4-25 2902 Orange Near Laguna Comment
  CAS-BOT-BC77150  Pentagramma triangularis subsp. triangularis Miss. Mason s.n. Orange Orange Comment
  JEPS38558  Osmadenia tenella H. L. Mason 1926-4-25 Orange Laguna Comment
  UC571125  Oxalis albicans subsp. californica Herbert L. Mason 1926-4-25 2927 Orange 5 mi s Laguna Comment
  UC635044  Pterostegia drymarioides H. L. Mason 1926-4-25 2910 Orange coast 5 mi. s. Laguna Comment
  UC635392  Camissoniopsis cheiranthifolia subsp. suffruticosa H. L. Mason 1926-4-25 2918 Orange 5 mi s Laguna Comment
  UC672389  Phacelia parryi Herbert L. Mason 1926-4-25 2911 Orange 5 mi s Laguna Comment
  UCD122219  Mimulus aurantiacus Steve Mason; Pam Rector 1993-4-16 1 Orange Laguna Niguel, Sea View Park Trail, end of trail behind blue rails and Ceanothus sp. Coastal sage scrub on bluff near housing development overlooking canyon and coastline. 182 Comment
  SFV16517  Lathyrus hirsutus S. Mason, P. Rector 1993-4-16 s. n. Orange Santa Ana Mountains CA State Highway 74 at Lower San Juan Campground. Adjacent to campground sign on southeast side of road. 396 Comment
  CAS-BOT-BC163589  Clarkia biloba subsp. biloba H. L. Mason 1926-5-28 3270 Placer Five miles above Auburn Comment
  CAS-BOT-BC307366  Gnaphalium palustre H. L. Mason 1932-9-9 7175 Placer Cisco Comment
  RSA257183  Rhamnus alnifolia H. L. Mason 1939-8-3 12200 Placer Squaw Valley 7 miles NW of Tahoe City. 1890 Comment
  UC1076296  Orobanche californica subsp. grayana Herbert L. Mason 1932-9-9 7177 Placer Cisco. Comment
  UC1191221  Erigeron coulteri Herbert L. Mason 1939-8-3 12204 Placer n of Lake Tahoe (Squaw Creek Valley); Squaw Creek Valley 1889 Comment
  UC565457  Scutellaria californica Herbert L. Mason 1929-10-4 5458 Placer 1 mi above Cisco Comment
  UC565461  Scutellaria californica Herbert L. Mason 1926-5-26 3274 Placer 5 mi above Auburn Comment
  UC566898  Tauschia hartwegii H. L. Mason 1926-5-28 3268 Placer five mi above Auburn Comment
  UC570690  Solanum umbelliferum Herbert L. Mason 1926-5-28 3269 Placer 5 mi above Auburn Comment
  UC634574  Ceanothus tomentosus Herbert L. Mason 1926-5-29 3286 Placer Donner Pass Road near Alta; Donner Pass Road near Alta Comment
  SEINET8727023 Image available Limnanthes alba Charles T. Mason Jr. 1949-1 1294 Placer 4.3 miles S. W. of Placerville along U. S. Highway 50. Comment
  UC634963  Myosurus minimus H. L. Mason 1933-5-28 7240 Placer Tahoe Meadows Comment
  UC634986  Ranunculus alismifolius var. alismifolius H. L. Mason 1933-5-28 7238 Placer Lower Truckee River Comment
  UC635580  Hesperochiron californicus H. L. Mason 1933-5-28 7241 Placer Tahoe Meadows Comment
  UC912502  Eurybia integrifolia Herbert L. Mason 1932-9-9 7178 Placer Truckee Junction Comment
  UC912550  Dieteria canescens var. shastensis H. L. Mason 1932-9-9 7179 Placer Truckee Junction Comment
  JEPS11464  Penstemon rydbergii var. oreocharis H. L. Mason 1924-6-26 1095 Plumas near Blairsden; along Feather River, near Blairsden Comment
  JEPS58854  Pyrola asarifolia H. L. Mason 1924-6-26 Plumas Blairsden Comment
  UC1039541  Dodecatheon jeffreyi Herbert L. Mason 1924-6-19 1077 Plumas near the base Mt. Elwell (near the outlet of Bear Lake); near outlet Bear Lake, near base of Mt. Elwell Comment
  UC1061646  Pseudotsuga menziesii Herbert L. Mason Plumas Comment
  UC555552  Sorbus californica H. L. Mason 1924-6-19 1072 Plumas Lake Region from Gold Lake to Bear Lake Comment
  UC566749  Eriophyllum lanatum var. integrifolium H. L. Mason 1924-6-18 1050 Plumas dry sandy bank between meadow and Feather River; Graeagle Comment
  UC571054  Ledum glandulosum H. L. Mason 1924-6-19 1075 Plumas along margins of Bear Lakes Bear Lakes Comment
  UC634583  Ceanothus velutinus Herbert L. Mason 1924-6-18 1057 Plumas road between Graeagle and Gold Lake; rd between Graeagle and Gold Lake Comment
  UC635149  Chimaphila umbellata H. L. Mason 1924-6-18 1054 Plumas rd. between Graeagle and Gold Lake Comment
  UC635151  Pyrola asarifolia H. L. Mason 1924-6-26 1091 Plumas near Blairsden Comment
  UC965538  Polygonum polygaloides subsp. confertiflorum Herbert L. Mason 1952-7-17 14388 Plumas Beckwourth Sierra Valley 1524 Comment
  JEPS812  Ipomopsis aggregata Herbert L. Mason 1924-6-15 1035 Plumas Blairsden Feather River (near the junction of Graeagle creek and the Feather River) Comment
  POM312423  Myosurus aristatus H. L. Mason 1953-6-16 14554 Plumas 2 miles E of Beckwourth Comment
  UC1099920  Sparganium emersum var. emersum Herbert L. Mason 1953-7-8 14560 Plumas 4 mi nw Loyalton Comment
  UC1101260  Lemna trisulca Herbert L. Mason 1955-7-30 14638 Plumas near Chester Comment
  UC1101361  Myosurus apetalus Herbert L. Mason 1953-7-8 14559 Plumas 6 mi se Beckwourth (on road from; to Loyalton across valley) Comment
  UC1112281  Myosurus apetalus Herbert L. Mason 1952-7-17 14381 Plumas just s Beckworth (along Western Pacific tracks); Sierra Nevada 1524 Comment
  UC566874  Lomatium nudicaule H. L. Mason 1924-6-16 1040 Plumas s. bank of Feather R. near Graeagle; Feather River Comment
  UCD138201  Lemna trisulca Herbert L. Mason 1955-7-30 14638 Plumas near Chester. Comment
  SD46109  Eriastrum diffusum subsp. coachellae Herbert L. Mason 1952-4-7 14214 Riverside Palm Canyon, Palm Springs. Comment
  UC1039596  Phoradendron californicum H. L. Mason 1928-3-11 4233 Riverside desert flats near Indio Comment
  UC1051457  Linanthus jonesii Herbert L. Mason 1952-4-7 14207 Riverside Palm Canyon Palm Spring Comment
  UC1051483  Stylocline gnaphaloides Herbert L. Mason 1952-4-7 14208 Riverside Palm Canyon Palm Springs Comment
  UC1076479  Scleranthus annuus subsp. annuus Herbert L. Mason 1926-4-30 3125 Riverside Pala Grade Comment
  UC1077075  Lycium Herbert L. Mason 1928-3-10 4215 Riverside Hidden Springs Canyon Coachella Mts. Comment
  UC1100451  Setaria viridis Herbert L. Mason and Malcolm A. Nobs 1948-9-3 491 Riverside 2 mi. n. Indio Comment
  UC555386  Caesalpinia virgata H. L. Mason 1928-3-10 Riverside Coachella Mts., Hidden Springs Canyon Comment
  UC555406  Lotus rigidus H. L. Mason 1928-3-11 4240 Riverside near Indio Comment
  UC573091  Cryptantha barbigera Herbert L. Mason 1928-3-10 4228 Riverside Hidden Springs Canyon Coachella Mts. Comment
  UC634677  Oligomeris linifolia H. L. Mason 1928-3-10 4179 Riverside in alkaline spots along Whitewater River; along Whitewater River Comment
  UC635311  Astragalus pomonensis H. L. Mason 1926-4-30 3114 Riverside one mi s Temecula (Temecula Canyon); s of Temecula, Temecula Canyon Comment
  UC635388  Chylismia cardiophylla subsp. cardiophylla H. L. Mason 1928-3-10 4205 Riverside Hidden Springs Coachella Mountains Comment
  UC672402  Phacelia crenulata var. ambigua Herbert L. Mason 1928-3-10 4226 Riverside Hidden Spring Canyon Colorado Desert, Coachella Mountains Comment
  UC672446  Justicia californica H. L. Mason 1927-3-11 4251 Riverside Palm Springs Colorado Desert, Palm Springs Comment
  UC673535  Mohavea confertiflora H. L. Mason 1928-3-10 4209 Riverside Coachella Mountains, Hidden Springs Canyon Hidden Springs Canyon; Coachella Mountains, Hidden Springs Canyon Comment
  UC748762 Image available Gilia abramsii Herbert L. Mason 1926-4-30 3112 Riverside 1 mi s Temecula; Temecula Canyon; Temecula Canyon, Riverside Co. Comment
  UC748763 Image available Saltugilia australis Herbert L. Mason 1926-5-2 3195 Riverside Temecula Valley; ; Temecula Valey, Riverside Co. Comment
  UC908023  Gilia ochroleuca subsp. exilis Herbert L. Mason 1926-4-30 3112 Riverside 1 mi s Temecula; Temecula Canyon, s of Temecula Comment
  UC908355  Gilia angelensis Herbert L. Mason 1928-3-11 4255 Riverside San Gorgonio Pass Comment
  UC908792  Allophyllum glutinosum Herbert L. Mason 1926-4-30 3131 Riverside 2 mi. s. Temecula Comment
  UC912283  Mirabilis laevis var. retrorsa Herbert L. Mason 1928-3-10 4176 Riverside Snow Creek, Whitewater River Valley, Colorado Desert Comment
  UC912656  Panicum urvilleanum H. L. Mason 1928-3-10 4197 Riverside Whitewater River Comment
  UCD92862  Setaria viridis Herbert L. Mason; Malcolm A. Nobs 1948-9-3 491 Riverside 2 miles north of Indio. Comment
  UC1100745  Eleocharis macrostachya Herbert L. Mason 1949-4-25 14018 Sacramento Alder Creek Reservoir Comment
  UC1100951  Juncus balticus Herbert L. Mason 1949-4-25 14015 Sacramento Alder Creek Reservoir Comment
  UC1141495  Lysimachia nummularia Herbert L. Mason 1950-1 Sacramento Folsom Comment
  UC634650  Psilocarphus oregonus Lucile Mason 1934-3-25 Sacramento Rio Linda Comment
  UC694148  Psilocarphus tenellus Lucile Mason 1934-3-25 Sacramento Rio Linda Comment
  UC769969  Plantago erecta Herbert L. Mason 1934-3-25 7947 Sacramento Rio Linda, Keithly ranch Sacramento Valley 30 Comment
  UC769976  Sanicula bipinnatifida Herbert L. Mason 1934-3-25 7960 Sacramento Sacramento Valley, Rio Linda, Keithly Ranch Rio Linda; Sacramento Valley, , Keithly Ranch Comment
  UC769986  Nassella pulchra Herbert L. Mason 1934-3-25 7969 Sacramento Keithly Ranch Sacramento Valley, Rio Linda Comment
  UC769991  Lepidium nitidum Herbert L. Mason 1934-3-25 7930 Sacramento Keithly ranch Sacramento Valley, Rio Linda Comment
  UC769995  Calandrinia ciliata Herbert L. Mason 1934-3-25 7942 Sacramento Keithly Ranch Sacramento Valley, Rio Linda Comment
  UC769997  Triphysaria eriantha subsp. eriantha Herbert L. Mason 1934-3-25 7955 Sacramento Rio Linda Sacramento Valley, Rio Linda (Keithly ranch) Comment
  UC770000  Dichelostemma capitatum Herbert L. Mason 1934-3-25 7952 Sacramento Keithly ranch, Rio Linda Sacramento Valley, Rio Linda Comment
  POM312836  Juncus acuminatus H. L. Mason 1949-4-24 14017 Sacramento Alder Creek Reservoir. Comment
  UC907580  Apocynum cannabinum Herbert L. Mason 1942-1 Sacramento along dike of Sacramento R. near Walnut Grove Comment
  CAS-BOT-BC242699  Eriogonum covilleanum H. L. Mason 1930-3-30 5542 San Benito San Benito River Canyon, 14 miles below the Pinnacles Comment
  CAS-BOT-BC64146  Ancistrocarphus filagineus Herbert L. Mason 1952-4-27 14286 San Benito About 3 miles from mouth of San Carlos Canyon Comment
  UC1060657  Layia discoidea Herbert L. Mason 1957-5-11 14745 San Benito Headwaters of Clear Water [Clear Creek] Comment
Read comments
May 6 2019
  UC1060658  Linanthus parviflorus Herbert L. Mason 1957-5-11 14742 San Benito 2-3 mi e Hernandez Comment
  UC1060659  Phlox gracilis Herbert L. Mason 1957-5-11 14741 San Benito 4-5 mi e Hernandez (entrance to Clear Creek); Clear Creek Comment
  UC1111530  Phacelia breweri Herbert L. Mason 1957-5-11 14736 San Benito 4-5 mi e Hernandez (entrance to canyon); Clear Creek Canyon Comment
  UC1178028  Hollisteria lanata Herbert L. Mason 1950-4-21 14039 San Benito e side of Panoche Valley Panoche Valley Comment
  UC1191219  Madia radiata Herbert L. Mason 1952-4-27 14285 San Benito ca 3 mi from mouth San Carlos Canyon Comment
  UC566653  Packera breweri H. L. Mason 1930-4-21 5608 San Benito Priest Valley Comment
  UC566820  Apiastrum angustifolium H. L. Mason 1930-3-30 5534 San Benito 14 mi below the Pinnacles (San Benito River Canyon); San Benito River Canyon Comment
  UC566909  Fraxinus dipetala H. L. Mason 1932-4-3 6923 San Benito Summit of Lewis Creek and San Benito River divide (on Priest Valley road) Comment
  UC566910  Fraxinus dipetala H. L. Mason 1930-4-21 5604 San Benito Priest Valley Comment
  UC570841  Ribes aureum var. gracillimum H. L. Mason 1932-4-3 6924 San Benito nw Priest Valley (near summit of grade); Lewis Creek Grade Comment
  UC673433  Triphysaria micrantha H. L. Mason 1930-4-21 5602 San Benito Priest Valley Comment
  UC908985  Gilia clivorum Herbert L. Mason 1930-3-30 5532 San Benito 14 mi below Pinnacles (San Benito River Canyon); , below Pinnacles Comment
  UC912396  Ceanothus leucodermis Herbert L. Mason 1930-4-21 5601 San Benito Priest Valley Comment
  SEINET12278754  Gilia multicaulis H. L. Mason 1957-1 14737 San Benito Clear Creek Canyon 4.5 mi from Hernandez Comment
  UC634838  Eremalche parryi H. L. Mason 1930-3-30 5537 San Benito 14 mi. below Pinnacles; San Benito R. Canyon Comment
  UC635295  Astragalus didymocarpus H. L. Mason 1930-3-30 5536 San Benito fourteen mi below Pinnacles (San Benito River Canyon); , below Pinnacles Comment
  UC635306  Astragalus oxyphysus H. L. Mason 1930-3-30 5541 San Benito fourteen mi below Pinnacles (San Benito River Canyon); , below Pinnacles Comment
  CAS-BOT-BC225411  Gilia latiflora subsp. latiflora Herbert L. Mason 1926-4-27 3068 San Bernardino Two miles south of Victorville, Mohave Desert Comment
  RSA114057  Filago depressa H. L. Mason 1952-4-11 14252 San Bernardino Black Lava Bed just east of Dagget. Comment
  RSA114058  Linanthus arenicola H. L. Mason 1952-4-11 14250 San Bernardino Black Lava Bed just east of Dagget. Comment
  RSA114059  Gilia scopulorum H. L. Mason 1952-4-11 14257 San Bernardino Black lavas north of Pisgah Crater. Comment
  SD46096  Euphorbia eriantha Herbert L. Mason 1952-4-9 14232 San Bernardino 10 miles south of Needles Comment
  SD46104  Aliciella micromeria Herbert L. Mason 1952-4-11 14256 San Bernardino North of Pisgah Crater. Comment
  SD49861  Sphaeralcea ambigua var. ambigua Herbert L. Mason 1952-4-9 14230 San Bernardino 10 miles south of Needles. Comment
  UC1039626  Mohavea breviflora Herbert L. Mason 1935-4-30 8291 San Bernardino w of Searles Lake (sw of Trona, Poison Canyon); Poison Canyon Comment
  UC1039641  Atrichoseris platyphylla Herbert L. Mason 1935-4-30 8290 San Bernardino Poison Canyon Comment
  UC1051458  Prosopis glandulosa var. torreyana Herbert L. Mason 1952-4-9 14225 San Bernardino 25 mi s Needles (on road from Blythe to Needles) Comment
  UC1051472  Phacelia rotundifolia Herbert L. Mason 1952-4-11 14254 San Bernardino black lavas n Pisgah Crater Comment
  UC1051477  Langloisia setosissima subsp. punctata Herbert L. Mason 1952-4-11 14258 San Bernardino black lavas n. Pisgah Crater Comment
  UC1051479  Langloisia setosissima subsp. setosissima Herbert L. Mason 1952-4-9 14228 San Bernardino 10 mi. s. Needles Comment
  UC1051480  Gilia subacaulis Herbert L. Mason 1952-4-11 14256 San Bernardino Black lavas n Pisgah Crater; n of Pisgah Crater Comment
  UC1051491  Loeseliastrum matthewsii Herbert L. Mason 1952-4-10 14247 San Bernardino e. of Las Vegas, Nevada (Mountain Pass Grade, CA); Mountain Pass Grade, CA Comment
  UC1051494  Nama depressa Herbert L. Mason 1952-4-11 14251 San Bernardino Black Lava Bed just e of Daggett; Black Lava Bed Comment
  UC1051496  Phacelia pachyphylla Herbert L. Mason 1952-4-11 14248 San Bernardino just e Daggett; Black Lava Bed Comment
  UC1077103  Logfia depressa Herbert L. Mason 1940-3-23 12248 San Bernardino 1/2 mi s Trona; Searles Lake Comment
  UC1093652  Muilla coronata Herbert L. Mason 1952-4-11 14259 San Bernardino flats 1/4 mi n Kramer Comment
  UC1179026  Nemacladus rubescens Herbert L. Mason 1935-4-30 8281 c San Bernardino Head of Poison Canyon Comment
  UC1186141  Gilia aliquanta Herbert L. Mason 1935-3-28 8183 San Bernardino Stoddard Wells; Mojave Desert Comment
  UC1191127  Tamarix ramosissima Herbert L. Mason 1952-4-9 14227 San Bernardino 25 mi s Needles (on road from Blythe to Needles) Comment
  UC555397  Acacia greggii H. L. Mason 1929-6-3 5361 San Bernardino Needles Comment
  UC555667  Rosa woodsii var. glabrata Herbert L. Mason 1926-4-28 3090 San Bernardino Box S Springs Mojave Desert Comment
  UC570698  Nicotiana obtusifolia Herbert L. Mason 1926-4-27 3069 San Bernardino Dead Man Point; Mojave Desert Comment
  UC581156  Antirrhinum filipes H. L. Mason 1935-3-29 8219 San Bernardino w of Searles Lake (Poison Canyon); Mojave Desert, Poison Canyon Comment
  UC581179  Logfia depressa H. L. Mason 1935-3-29 8229 San Bernardino w of Searles Lake; Mojave Desert, Poison Canyon Comment
  UC581183  Chorizanthe rigida H. L. Mason 1935-3-29 8222 San Bernardino w Searles Lake (Poison Canyon, Mojave Desert); Mojave Desert, Poison Canyon, w of Searles Lake Comment
  UC592154  Caulanthus amplexicaulis H. L. Mason 1927-6-14 3765 San Bernardino San Antonio Canyon San Gabriel Mountains, San Antonio Canyon 1889 Comment
  UC635253  Allium monticola Herbert L. Mason 1927-6-15 3768 San Bernardino slopes of Mt. Baldy San Gabriel Mts., Mt. Baldy 2133 Comment
  UC635419  Ranunculus cymbalaria var. saximontanus H. L. Mason 1926-4-28 3091 San Bernardino Box S Ranch; in springs Comment
  UC672366  Nama demissa var. demissa Herbert L. Mason 1926-4-28 3077 San Bernardino Box S Ranch San Bernardino Mountains, Box S Ranch ((Box S Ranch), San Bernardino Mountains) Comment
  UC672404  Phacelia crenulata var. ambigua Herbert L. Mason 1926-4-28 3104 San Bernardino Box S Ranch, Mohave Desert Comment
  UC908491  Gilia brecciarum subsp. neglecta Herbert L. Mason 1938-4-15 11724 San Bernardino along road between Johannesburg and Trona; Mohave Desert, btw Johannesburg and Trona Comment
  UC908614  Linanthus arenicola H. L. Mason 1940-3-23 12251 San Bernardino sw of Searles Lake; Poison Canyon Comment
  UC908856  Gilia sinuata Herbert L. Mason 1935-3-28 8197 San Bernardino twelve mi w Barstow; Mohave Desert, w of Barstow Comment
  UC963783  Linanthus concinnus Herbert L. Mason 1927-6-15 3786 San Bernardino trail to summit of Mount Baldy (Mount San Antonio) San Gabriel Mountains, Mount Baldy (Mount San Antonio) 2133 Comment
  UC963784  Linanthus concinnus Herbert L. Mason 1927-6-15 3775 San Bernardino trail to summit of Mount Baldy (Mount San Antonio) San Gabriel Mountains, Mount Baldy (Mount San Antonio) 2590 Comment
  CAS-BOT-BC376081  Stylocline intertexta H. L. Mason 1935-3-29 8233 San Bernardino West side of Searles Lake, six miles south of Trona, Mojave Desert Comment
  CAS-BOT-BC376092  Stylocline micropoides H. L. Mason 1935-3-29 8235 San Bernardino West side of Searles Lake, six miles south of Trona, Mohave Desert Comment
  CAS-BOT-BC407838  Gilia ochroleuca subsp. ochroleuca Herbert L. Mason 1935-3-29 8215 San Bernardino Mohave Desert, 3 miles N of Johannesburg on road to Searles Lake Comment
  SEINET10972550  Nemacladus sigmoideus Mason 1935-4-30 Mason 8281 San Bernardino Poison Canyon Comment
  UC567794 Image available Linanthus arenicola Herbert L. Mason 1935-3-29 8232 San Bernardino 1 mi s Trona (w side of lake); Mohave Desert, Searles Lake; Searles Lake, Mohave Desert, San Bernardino Co. Comment
  UC581174  Logfia depressa H. L. Mason 1935-3-29 8235 San Bernardino six mi s Trona (w side of lake); Mohave Desert, Searles Lake Comment
  CAS-BOT-BC211489  Helianthemum scoparium H. L. Mason 1926-4-30 3118 San Diego Pala Grade to Palomar Mountain Comment
  CAS-BOT-BC44504  Arctostaphylos pringlei subsp. drupacea H. L. Mason 1926-5-1 3165 San Diego Palomar Mountain Comment
  JEPS57999  Oxytheca trilobata Herbert L. Mason 1926-5-1 3169 San Diego Palomar Mt. Comment
  UC1081503  Castilleja applegatei subsp. martinii H. L. Mason 1926-5-1 3162 San Diego Palomar Mountain Comment
  UC1100672  Cyperus erythrorhizos Herbert L. Mason and S. Galen Smith 1948-9-7 622 San Diego ca. 5 mi. s. Escondido (Lake Hodges); Lake Hodges Comment
  UC555424  Lotus wrangelianus H. L. Mason 1926-4-30 3142 San Diego near Henshaw Dam Comment
  UC565467  Boechera californica H. L. Mason 1926-5-1 3159 San Diego Palomar Mountain Comment
  UC566834  Lomatium dasycarpum subsp. dasycarpum H. L. Mason 1926-4-30 3143 San Diego fields near Henshaw Dam Comment
  UC566879  Sanicula bipinnatifida H. L. Mason 1926-4-30 3139 San Diego Henshaw Dam Comment
  UC581487  Viola douglasii H. L. Mason 1926-4-30 3140 San Diego fields near Henshaw Dam Comment
  UC635051  Chorizanthe procumbens Herbert L. Mason 1926-4-30 3129 San Diego Pala Grade toward Palomar Mt.; Pala Grade (toward Palomar Mt.) Comment
  UC635200  Rhus integrifolia H. L. Mason 1925-4-18 1499 San Diego Hills back of Navy Fuel Dock Comment
Read comments
Feb 27 2017
  UC635276  Oenothera californica subsp. californica H. L. Mason 1926-5-1 3180 San Diego Oak Grove Comment
  UC635588  Nemacladus longiflorus var. longiflorus H. L. Mason 1926-4-30 3145 San Diego Oak Grove 853 Comment
  UC635592  Nemacladus longiflorus var. longiflorus H. L. Mason April 1926 3177 a San Diego Oak Grove Comment
  UC635593  Nemacladus pinnatifidus H. L. Mason April 1926 3177 San Diego Oak Grove Comment
  UC635594  Chamaesyce polycarpa H. L. Mason 1925-4-18 1495 San Diego hills near San Diego (Navy fuel dock) Comment
  UC672390  Phacelia parryi Herbert L. Mason 1926-4-30 3123 San Diego Pala Grade Palomar Mt. Comment
  UC672579  Mimulus fremontii var. fremontii H. L. Mason 1926-4-30 3183 San Diego Oak Grove Comment
  CAS-BOT-BC515018  Eriastrum sapphirinum subsp. dasyanthum Herbert L. Mason 1926-4-30 3122 San Diego Pala Grade, Temecula Canyon, Temecula to Pala Comment
  UC635088  Eriogonum fasciculatum var. foliolosum Herbert L. Mason 1926-4-30 3128 San Diego Palo Grade to Palomar Mt.; Palo Grade Comment
  UC1039559  Dodecatheon clevelandii subsp. patulum Herbert L. Mason 1927-3-11 3651 San Francisco Bernal Heights San Francisco, Bernal Heights Comment
  UC1191122  Polygonum paronychia Herbert L. Mason 1924-10-19 1118 San Francisco Country Club Gate San Francisco, Merced Lake (in sand hills) Comment
  UC543757  Aristolochia californica Herbert L. Mason 1924-5-11 910 San Francisco Golden Gate Park, San Francisco San Francisco, Golden Gate Park Comment
  UC555292  Potentilla rivalis H. L. Mason 1925-10-17 2242 San Francisco Golden Gate Park , chain of lakes Comment
  UC555353  Trifolium depauperatum var. amplectens H. L. Mason 1928-4-25 4376 San Francisco Hunter's Point Comment
  UC566711  Lasthenia minor H. L. Mason 1926-4-18 2875 San Francisco Sand dunes Comment
  UC570679  Solanum americanum Herbert L. Mason 1924-10-19 1129 San Francisco San Francisco Sand Dunes, Merced Lake Merced Lake; San Francisco Sand Dunes, Merced Lake Comment
  UC571176  Iris longipetala H. L. Mason 1925-3-1 1272 San Francisco Bernal Heights; San Francisco Comment
  UC573152  Cryptantha leiocarpa Herbert L. Mason 1926-4-18 2874 San Francisco s of Cliff House; San Francisco Comment
  UC581516  Viola pedunculata H. L. Mason 1926-3-1 1270 San Francisco Bernal Heights Comment
  UC634779  Lomatium caruifolium var. caruifolium H. L. Mason 1928-4-17 4372 San Francisco Hunter's Point Comment
  UC672281  Hesperevax sparsiflora var. sparsiflora H. L. Mason 1928-4-25 4374 San Francisco Hunter's Point Comment
  UC1603216  Pinus Mason 1934-10-1 10037 San Francisco Whalers Knoll Point Lobos, St. Pk., Whalers Knoll Comment
  UC635394  Camissonia strigulosa H. L. Mason 1926-4-18 2861 San Francisco hills near sand dunes; San Francisco Comment
  UCD98802  Dysphania multifida Herbert L. Mason 1924-10-19 1115 San Francisco Colma. Comment
  CAS-BOT-BC182335  Astragalus didymocarpus var. didymocarpus H. L. Mason 1932-3-19 6834 San Joaquin Two miles east of Midway, near Tracy Comment
  CAS-BOT-BC400159  Ceratophyllum demersum H. L. Mason 1929-9-9 5421 San Joaquin Holt Comment
  CAS-BOT-BC83364  Myosurus minimus H. L. Mason 1930-4-1 5548 San Joaquin Ten miles east of Stockton. Comment
  UC1028679  Ceratophyllum demersum Herbert L. Mason 1938-8-26 12076 San Joaquin Trappers Slough Roberts Island (Roberts Island); , Roberts Island Comment
  UC1039534  Dodecatheon clevelandii subsp. patulum Herbert L. Mason 1927-4-7 5201 San Joaquin 4 mi e Clements; e of Clements Comment
  UC1039795  Proboscidea lutea Herbert L. Mason 1929-9-9 5429 San Joaquin Holt; reclaimed delta lands Comment
  UC1099891  Potamogeton crispus Herbert L. Mason, S. Galen Smith 1948-8-5 8269 San Joaquin Trapper's Slough Robert's Island Comment
  UC1099894  Potamogeton crispus Herbert L. Mason, Verne Grant 1946-8-21 13068 San Joaquin sw of Holt; Trapper's Slough Comment
  UC1100460  Setaria pumila Herbert L. Mason 1946-9-12 13127 San Joaquin slough s. of main ditch, Borden Hwy., near Dagget Rd., Roberts Isl. Roberts Isl. Comment
  UC1100531  Cyperus eragrostis Herbert L. Mason and Verne Grant 1946-8-21 13056 San Joaquin between Banta and Stockton Comment
  UC1101177  Polygonum hydropiperoides Herbert L. Mason 1929-9-21 5442 San Joaquin Holt Alklaline Grasslands of San Joaquin Valley Comment
  UC1101503  Myriophyllum spicatum Herbert L. Mason and S. Galen Smith 1948-8-5 8270 San Joaquin Robert's Isl., Trapper's Slough Comment
  UC1106903  Potamogeton illinoensis Herbert L. Mason 1938-8-26 12073 San Joaquin Trappers Slough; Roberts Island Comment
  UC1111555  Utricularia macrorhiza Herbert L. Mason 1937-6-21 11549 San Joaquin 0.5 mi. s.w. Holt (Trapper Slough, Roberts Isl.); Roberts Isl., Trapper Slough Comment
  UC1191637  Calystegia sepium subsp. binghamiae Herbert L. Mason, Verne Grant 1946-8-21 13067 San Joaquin Holt Holt (in tules) Comment
  UC555422  Lotus wrangelianus Herbert L. Mason 1932-3-19 6821 San Joaquin 2 mi e Midway Comment
  UC565492  Lasthenia glaberrima H. L. Mason 1932-4-24 6972 San Joaquin 11 mi s Clements Comment
  UC570781 Image available Callitriche hermaphroditica H. L. Mason 1928-5-3 4445 San Joaquin 4 mi n Clementes; ; San Joaquin Co. Comment
  UC571025  Pluchea odorata var. odorata H. L. Mason 1929-9-9 5419 San Joaquin Holt Comment
  UC573136  Amsinckia tessellata var. gloriosa H. L. Mason 1932-3-19 6831 San Joaquin 2 mi e Midway Comment
  UC629704  Egeria densa H. L. Mason 1938-8-26 12075 San Joaquin sw of Holt (Trapper Slough); Robert's Island Comment
  UC632813  Hippuris vulgaris H. L. Mason 1938-8-26 12077 San Joaquin s.w. Holt (Trapper Slough, Roberts Isl.); Roberts Isl., Trapper Slough Comment
  UC634959  Myosurus minimus H. L. Mason April 1930 5548 San Joaquin 10 mi e Stockton Comment
  UC635115  Phyla lanceolata H. L. Mason 1929-9-9 5428 San Joaquin San Joaquin River delta Holt; San Joaquin River delta Comment
  UC635117  Phyla lanceolata Herbert L. Mason 1928-9-30 4954 San Joaquin near Holt (San Joaquin River Delta); San Joaquin River Delta Comment
  UC635676  Utricularia macrorhiza Herbert L. Mason 1929-9-9 5422 San Joaquin Holt, lower San Joaquin R. Comment
  UC672468  Collinsia sparsiflora var. collina H. L. Mason 1929-4-7 5166 San Joaquin 10 mi e of Escalon Comment
  UC672598  Frankenia salina H. L. Mason 1928-9-30 4967 San Joaquin near Holt; San Joaquin Delta Comment
  UC935735  Sagittaria montevidensis subsp. calycina Herbert L. Mason and Verne Grant 1946-9-12 13126 San Joaquin Roberts Island; Borden Highway near Dagget Road Comment
  CAS-BOT-BC445825  Egeria densa H. L. Mason 1938-8-26 12075 San Joaquin Trapper Slough, Robert's Island, southwest of Holt Comment
  CAS-BOT-BC535199  Wolffiella lingulata Herbert L. Mason 1945-10-10 s. n. San Joaquin Trapper Slough, Roberts Island, delta of the San Joaquin River Comment
  CAS-BOT-BC535225  Wolffiella lingulata H. L. Mason 1937-6-21 11548 San Joaquin Trapper Slough, 1/2 mile southwest of Holt, Roberts Island Comment
  POM312901  Cannabis sativa H. L. Mason, Verne Grant 1946-8-21 13058 San Joaquin West of Stockton on Borden Hwy; Marsh Plant Survey. Comment
  POM312904  Polygonum coccineum H. L. Mason 1928-9-30 4968 San Joaquin San Joaquin Delta near Holt. Comment
  RSA312538  Polygonum punctatum H. L. Mason 1928-9-30 4969 San Joaquin San Joaquin Delta near Holt. Comment
  SEINET10939142  Heterocodon rariflorum Mason Mason 5551 San Joaquin KNIGHT'S FERRY Comment
  SEINET8727025 Image available Limnanthes douglasii Charles T. Mason Jr. 1948-1 1160 San Joaquin Along state Highway 4 about 1/8 mile west of cross-road to Milton and Knights Ferry, Elevation 200 feet. 61 Comment
  UCD110444  Elatine brachysperma Herbert L. Mason 1930-4-1 5550 a San Joaquin Ten miles east of Stockton. Comment
  UCD139988  Eichhornia crassipes Herbert L. Mason; Verne Grant 1946-8-21 13063 San Joaquin west of Stockton on Borden Highway. Comment
  UCD99494  Persicaria lapathifolia Herbert L. Mason 1928-9-30 4970 San Joaquin San Joaquin Delta near Holt. Comment
  POM312821  Juncus breweri H. L. Mason 1946-6-9 12873 San Luis Obispo Dune Lakes, between Oceano and mouth of Santa Maria River. Comment
  UC1100256  Leymus triticoides Herbert L. Mason 1946-6-9 12871 San Luis Obispo between Oceano and mouth of Santa Maria River; Dune Lakes Comment
  UC1100810  Scirpus pungens Herbert L. Mason 1946-6-9 12867 San Luis Obispo between Oceano and mouth of Santa Maria River Dune Lakes Comment
  UC1191699  Glaux maritima Herbert L. Mason 1946-6-9 12875 San Luis Obispo between Oceano and mouth of Santa Maria River (Dune Lakes); Dune Lakes Comment
  UC581172  Stylocline gnaphaloides H. L. Mason 1935-3-31 8250 San Luis Obispo Cholame Valley Comment
  UCD116238  Eremalche parryi Stephen Mason 1995-5-8 58 San Luis Obispo San Luis Obispo County: Carrizo Plain Natural Area, N side of Panorama Rd., 0.7 mi. from Soda Lake Rd. 609 Comment
  UCD45029  Quercus agrifolia Herbert L. Mason 1929-10-13 5501 a San Luis Obispo 2 1/2 mi. north of Cambria, San Luis Obispo County. Comment
  POM264397  Linanthus californicus subsp. tomentosus H. L. Mason 1941-3-28 12402 San Luis Obispo North end of Nipomo mesa. 76 Comment
  RSA28649  Prunus fasciculata var. punctata H. L. Mason 1941-3-28 12403 San Luis Obispo North end of Nipomo mesa. 76 Comment
  SFV16178  Lotus humistratus S. Mason 1995-5-8 55 San Luis Obispo Carrizo Plain Carrizo Plain Natural Area. Soda Lake Road, 3.8 miles south of KCL Campground off west side of road. 610 Comment
  UC1076528  Prunus fasciculata var. punctata Herbert L. Mason 1936-3-6 10987 a San Luis Obispo 11 mi w of San Luis Obispo (Pecho Hills); Pecho Hills Comment
  UC1093960  Oemleria cerasiformis Herbert L. Mason 1936-3-6 10987 San Luis Obispo 11 mi w San Luis Obispo (Pecho hills) Comment
  UC525848  Ceanothus thyrsiflorus Herbert L. Mason 1934-4-1 San Luis Obispo twenty mi n Cambria; n of Cambria Comment
  UC555694  Prunus ilicifolia H. L. Mason 1929-10-12 5490 San Luis Obispo 8.1 mi w Atascadero (Morro Creek drainage); Morro Creek Comment
  UC565500  Malacothrix saxatilis var. commutata H. L. Mason 1929-10-13 5505 San Luis Obispo six and one half miles w Templeton; Paso Robles Creek Comment
  UC570993  Rhamnus ilicifolia H. L. Mason 1929-10-12 5493 San Luis Obispo 8.4 mi w Atascadero (Morro Creek drainage); Morro Creek Comment
  UC634991  Eriogonum fasciculatum var. foliolosum Herbert L. Mason 1923-6-22 528 San Luis Obispo near San Luis Obispo; Camp Fremont Comment
  UC665607  Leptodactylon californicum Herbert L. Mason 1941-3-28 12402 San Luis Obispo n end Nipomo mesa; n end of Nipomo mesa 76 Comment
  UC907794  Navarretia atractyloides Herbert L. Mason 1923-1-14 380 San Luis Obispo between Paso Robles and San Luis Obispo Comment
  UCD103379  Camissonia campestris Steve Mason; Joey Artero 1993-4-24 10 San Luis Obispo San Luis Obispo County: Carrizo Plain Natural Area, Soda Lake Road, 7 miles SE of Washburn Ranch Road. About 200' in from NE side of road. 640 Comment
  CAS-BOT-BC112627  Isolepis cernua H. L. Mason 1921-6-2 s.n. San Mateo Pebble Beach, near Pescadero. Comment
  CAS-BOT-BC240591  Lonicera hispidula H. L. Mason 1921-7-14 s.n. San Mateo La Honda - Pescadero Creek Rd Comment
  CAS-BOT-BC324429  Lasthenia californica subsp. macrantha H. L. Mason 1921-6-1 s.n. San Mateo Pebble Beach near Pescadero Comment
  JROH3749  Prunus subcordata H. L. Mason 1921-3-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Zoo shack Comment
  JROH4538  Allium amplectens H. L. Mason 1921-5-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA120036  Lonicera hispidula var. vacillans H. L. Mason 1921-7-4 s.n. San Mateo La Honda - Pescadero Creek Rd. Comment
  RSA130380  Epilobium ciliatum subsp. watsonii H. L. Mason 1921-6-1 s.n. San Mateo Pebble Beach near Pescadero Comment
  RSA130981  Viola ocellata H. L. Mason 1917-3-8 66 San Mateo Kings Mtn. Comment
  UC1100725  Eleocharis macrostachya Herbert L. Mason, Verne Grant 1946-8-28 13087 San Mateo S of San Francisco (Santa Cruz--Daly City Road # 5) Comment
  UC1101144  Polygonum lapathifolium Herbert L. Mason and Verne Grant 1946-8-28 13089 San Mateo s San Francisco (pond on Santa Cruz-Daly City Road #5) Comment
  UC555624  Potentilla anserina subsp. pacifica Herbert L. Mason 1927-4-24 3701 San Mateo mouth of San Gregorio Creek Comment
  UC634880  Mentha pulegium Herbert L. Mason Oct. 1923 785 San Mateo near summit of Jasper Ridge (toward the Hermits); near summit of Jasper Ridge toward the Hermits Comment
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Sep 19 2011
  UC634908  Salvia spathacea H. L. Mason 1928-2-22 4160 San Mateo Mt. San. Bruno Comment
  UC635625  Euonymus occidentalis var. occidentalis Herbert L. Mason 1924-10-8 1110 San Mateo 2 1/2 mi. w. Palo Alto (n.w. end of Jasper Ridge); Jasper Ridge Comment
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Sep 19 2011
  UC912474  Symphyotrichum chilense Herbert L. Mason 1927-10-4 4130 San Mateo Mouth of Waddell Creek, Ano Nuevo Pt. Ano Nuevo Pt., Waddell Creek Comment
  UC912633  Hierochloe occidentalis Herbert L. Mason 1927-4-23 3669 San Mateo La Honda Comment
  CAS-BOT-BC403545  Eschscholzia californica H. L. Mason 1922-3-26 s.n. San Mateo Mouth of Gazos Creek Comment
  CAS-BOT-BC453833  Potamogeton nodosus H. L. Mason 1921-5-28 s.n. San Mateo Lagoon back of New Years Pt. Comment
  RSA131269  Apocynum pumilum var. rhomboideum H. L. Mason 1931-7-14 s.n. San Mateo Pescadero Creek, La Honda Road. Comment
  SEINET12043950  Allium dichlamydeum H. L. Mason 1921-1 s.n. San Mateo Jasper Ridge near Sand Hell Caves Comment
  UC1039782  Castilleja subinclusa subsp. franciscana H. L. Mason 1927-4-23 3678 San Mateo La Honda to Pescadero Creek (via Blumquist Mill) Comment
  UC1100787  Scirpus cernuus Herbert L. Mason 1949-7-7 14027 San Mateo mouth of Gazos Creek near ocean (southern San Mateo County); mouth of Gazos Creek Comment
  UC908011  Linanthus androsaceus Herbert L. Mason 1935-5-21 8315 San Mateo s of La Honda (Alpine Road); Santa Cruz Mountains Comment
  CAS-BOT-BC44766  Arctostaphylos purissima H. L. Mason 1938-5-7 11776 Santa Barbara Burton Mesa Comment
  CAS-BOT-BC452067  Phyllospadix torreyi Herbert L. Mason 1927-11-27 4145 Santa Barbara Carpinteria Comment
  JEPS32150  Phyllospadix torreyi H. L. Mason 1927-11-26 Santa Barbara Carpinteria Comment
  OBI22899  Hesperolinon micranthum Herbert L. Mason 1946-6-7 12828 Santa Barbara Ridge between Camuesa Crk and Oso Crk S of lIttle Pine Mts on rd to Oso Gato 762 Comment
  SD47975  Chorizanthe obovata Herbert L Mason 1946-6-7 12822 Santa Barbara Mono Flat, 0.5 mile west of Camuesa Comment
  SEINET196218  Navarretia mitracarpa Herbert L. Mason 1946-6-7 12834 Santa Barbara Serpentine ridge between Camuesa Creek and Oso Creek, S of Little Pine Mountian. 762 Comment
  SEINET3290571 Image available Phyllospadix torreyi H. L. Mason 1927-11-26 d.n. Santa Barbara Carpinteria Comment
  SEINET3836444 Image available Eriogonum arborescens Herbert L. Mason 1927-9-23 4084 Santa Barbara Prisoners Harbor, Santa Cruz Island Comment
  SFV2959  Eriodictyon capitatum H. L. Mason 1947-5-2 13208 Santa Barbara Purissima Hills, Pine Canyon. 100 Comment
  UC1076494  Atriplex lentiformis subsp. lentiformis Herbert L. Mason 1927-11-27 4143 Santa Barbara Carpenteria Carpenteria (along ocean bluffs) Comment
  UC1077112  Nuttallanthus texanus Herbert L. Mason 1938-5-7 11789 Santa Barbara Burton Mesa Comment
  UC1077126  Castilleja exserta Herbert L. Mason 1946-6-7 12829 Santa Barbara s of Little Pine Mountains (between Camuesa Creek and Oso Creek) 762 Comment
  UC1083158  Pinus muricata Herbert L. Mason 1927-9-25 4097 Santa Barbara Buena Vista Canyon along roadway Santa Cruz Island, Buena Vista Canyon, Buena Vista Creek (in the forest of Buena Vista Creek) Comment
  UC1083335  Pinus muricata Herbert L. Mason 1923-6-15 393 Santa Barbara road between Harris and Lompoc (summit of Harris Grade); Harris Grade Comment
  UC1083382  Pinus Herbert L. Mason 1941-3-27 12390 Santa Barbara Burton Mesa Pine Canyon, Burton Mesa (Pine Canyon, w Santa Barbara County) Comment
  UC1093963  Cirsium occidentale var. californicum Herbert L. Mason 1946-6-7 12831 Santa Barbara s of Little Pine Mountain (between Camuesa Creek and Oso Creek) 762 Comment
  UC1093974  Lotus junceus Herbert L. Mason 1938-5-7 11769 Santa Barbara Burton Mesa Comment
  UC1178859  Arctostaphylos rudis H. L. Mason 1938-5-7 11770 Santa Barbara nw Lompoc; Burton Mesa Comment
  UC1178901  Eriogonum cithariforme Herbert L. Mason 1946-6-7 12823 Santa Barbara 0.5 mi w Cmuesa Canyon Comment
  UC1199523  Quercus wislizeni Herbert L. Mason 1923-7-15 402 Santa Barbara Harris Grade Comment
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Apr 2 2007
  UC555623  Horkelia cuneata subsp. puberula H. L. Mason 1923-6-15 405 Santa Barbara Harris Grade Comment
  UC555649  Cercocarpus betuloides var. blancheae Herbert L. Mason 1927-9-25 4108 Santa Barbara hills about Pelican Bay (Santa Cruz Island); Santa Cruz Island Comment
  UC566902  Tauschia arguta H. L. Mason 1923-6-16 464 Santa Barbara via La Combre Trail and Rattlesnake Canyon La Combre Peak; La Combre Peak via La Combre Tail and Rattlesnake Canyon Comment
  UC570988  Rhamnus ilicifolia Herbert L. Mason 1923-6-16 435 Santa Barbara La Cumbre Peak Comment
  UC571217  Arctostaphylos purissima H. L. Mason 1923-6-15 416 a Santa Barbara Harris Grade Comment
  UC593306  Nemophila menziesii H. L. Mason 1938-5-8 11807 Santa Barbara e Zaca Peak (near summit Figueroa Mountain, San Rafael Mountains); San Rafael Mountains, Figueroa Mountain, e of Zaca Peak 1371 Comment
  UC634720  Vaccinium ovatum Herbert L. Mason 1923-6-15 398 Santa Barbara Summit of Harris Grade Comment
  UC634919  Salvia spathacea H. L. Mason 1923-6-15 389 Santa Barbara Harris Grade; La Purisima Ridge Comment
  UC634925  Monardella undulata subsp. crispa H. L. Mason 1923-6-15 426 Santa Barbara Near Surf Comment
  UC634995  Eriogonum grande var. grande Herbert L. Mason 1927-9-24 4094 Santa Barbara in gullies near West Willow Creek; Santa Cruz Island Comment
  UC635055  Chorizanthe staticoides Herbert L. Mason 1923-6-16 443 Santa Barbara along trail to La Cumbre Peaks; trail to La Cumbre Peaks Comment
  UC635192  Rhus ovata H. L. Mason 1923-6-16 430 Santa Barbara Rattlesnake Canyon between Santa Barbara and La Combre Peak; Rattlesnake Canyon Comment
  UC635194  Malosma laurina H. L. Mason 1923-6-17 468 Santa Barbara Santa Barbara, Mountain Drive Comment
  UC635213  Rhus trilobata H. L. Mason 1923-6-16 451 Santa Barbara La Combre Trail, Rattlesnake Canyon between Santa Barbara and LaCombre Peak Comment
  UC637802  Ceanothus cuneatus var. cuneatus Herbert L. Mason 1923-6-15 411 Santa Barbara La Purisima Ridge. Harros Grade Comment
  UC672301  Corethrogyne filaginifolia H. L. Mason 1927-9-24 4092 Santa Barbara slopes about West Ranch; Santa Cruz Island Comment
  UC672382  Eriodictyon traskiae Herbert L. Mason 1923-6-15 401 Santa Barbara Harris Grade Comment
  UC673396  Lilium humboldtii Herbert L. Mason 1923-6-15 417 Santa Barbara Gaviota Pass Comment
  UC753519  Phacelia viscida Herbert L. Mason 1946-6-7 12840 Santa Barbara road between Camuesa Creek and Hidden Potrero; San Rafael Range 914 Comment
  UC753536  Lomatium mohavense Herbert L. Mason 1946-6-8 12859 Santa Barbara summit of rd. Big Pine Mt. (San Rafael Range); , Big Pine Mt. 1981 Comment
  UC753545  Apiastrum angustifolium Herbert L. Mason 1946-6-7 12837 Santa Barbara 0.5 mi above Cameusa Creek (on road to Oso Gate, San Rafael Range); San Rafael Range 731 Comment
  UC907801  Collomia grandiflora Herbert L. Mason 1946-6-8 12848 Santa Barbara Bluff Camp Big Pine Mountain Comment
  UC907832  Linanthus parviflorus Herbert L. Mason 1938-5-8 11805 Santa Barbara vicinity Figueroa Mountain summit; Figueroa Mountain 1371 Comment
  UC908088  Leptodactylon californicum Herbert L. Mason 1923-6-15 410 Santa Barbara Harris Grade near Harris Station; Harris Grade near Harris Station Comment
  UC912310  Isocoma menziesii var. vernonioides Herbert L. Mason 1927-11-27 4146 Santa Barbara one mi s of Carpenteria Comment
  UC912434  Sambucus mexicana Herbert L. Mason 1923-6-16 460 Santa Barbara La Cumbre Peak Comment
  UCD110542  Hesperolinon micranthum Herbert L. Mason 1946-6-7 12828 Santa Barbara Ridge between Camuesa Creek and Oso Creek south of Little Pine Mountain on road to Oso Gato. 762 Comment
  UCD45055  Quercus agrifolia Herbert L. Mason 1938-5-8 11809 Santa Barbara Vicinity of the summit of Figueroa Mountain, Santa Barbara County. Comment
  UCD47622  Quercus wislizeni Herbert L. Mason 1923-6-15 402 Santa Barbara Harris Grade, Santa Barbara County. 1828 Comment
  CAS-BOT-BC402109  Gilia ochroleuca Herbert L. Mason 1938-5-8 11795 Santa Barbara Vicinity of the summit of Figueroa Mountain Comment
  SEINET8061689  Symphoricarpos mollis S. C. Mason 1910-8-29 s.n. Santa Barbara San Marcos Pass. Comment
  UC972230  Leptodactylon californicum Herbert L. Mason 1936-3-7 10996 Santa Barbara two mi w Nipomo (Nipomo Mesa); w of Nipomo, Nipomo Mesa Comment
  UCSB44754  Galium nuttallii subsp. nuttallii Mason, Renee 1980-6-5 Santa Barbara 1 mile up San Ysidro Canyon trail along shady, right side; San Ysidro Canyon at end of Park Lane 335 Comment
  CAS-BOT-BC145985  Avena fatua H. L. Mason 1917-2-1 11 Santa Clara Stanford University. Comment
  CAS-BOT-BC243162  Poa secunda subsp. secunda H. L. Mason; H. A. Borthwick 1921-3-20 s.n. Santa Clara Guadalupe Canon Comment
  HSC16944  Eriastrum abramsii H. L. Mason, H. K. Sharsmith 1935-5-3 8302 Santa Clara Above Arroyo Bayo Creek, Mt. Hamilton Range 610 Comment
  JEPS23915  Dodecatheon hendersonii H. L. Mason and H. A. Borthwick 1921-3-20 Santa Clara Guadalupe Canyon Comment
  POM310953  Leptosiphon ambiguus H. L. Mason 1933-4-21 7197 Santa Clara Road above Smith's Creek on slopes of Isabel Creek, Mount Hamilton. Comment
  RSA131014  Lamium amplexicaule W. E. Mason 1917-04 s.n. Santa Clara Campus Stanford University. Comment
  UC1076265  Microseris douglasii Herbert L. Mason 1932-4-17 6937 Santa Clara hill 1 mi e New Almaden Comment
  UC1076330  Muilla maritima Herbert L. Mason 1932-4-17 6935 Santa Clara New Almaden Comment
  UC1076551  Eriogonum gracile Herbert L. Mason 1936-9-13 11530 Santa Clara w Madrone Station Comment
  UC1093911  Corethrogyne filaginifolia Herbert L. Mason 1936-9-13 11529 Santa Clara w Madrone Station Comment
  UC1093954  Lessingia micradenia var. glabrata Herbert L. Mason 1936-9-13 11528 Santa Clara w Madrone Station Comment
  UC1100521  Cyperus eragrostis Herbert L. Mason and S. Galen Smith 1948-8-9 8289 Santa Clara ca. 10 mi. w. of summit Pacheco Pass (Pacheco Creek); Pacheco Creek Comment
  UC1191252  Polygonum punctatum Herbert L. Mason and S. Galen Smith 1948-8-9 8273 Santa Clara 5 mi e Gilroy (at w base of pass); Pacheco Pass Comment
  UC1191403  Salicornia virginica Herbert L. Mason and S. Galen Smith 1948-8-9 8277 Santa Clara about 8 mi e Gilroy Comment
  UC1191622  Epilobium campestre Herbert L. Mason and S. Galen Smith 1948-8-9 8295 Santa Clara small reservoir just w summit; Pacheco Pass Comment
  UC1191918  Stachys ajugoides var. ajugoides Herbert L. Mason, S. Galen Smith 1948-8-9 8275 Santa Clara about 8 mi e Gilroy Comment
  UC1191926  Veronica anagallis-aquatica Herbert L. Mason, S. Galen Smith 1948-8-9 8285 Santa Clara about 10 mi w of summit of Pacheco Pass (Pacheco Creek); Pacheco Creek Comment
  UC570760  Callitriche marginata H. L. Mason 1932-4-17 6961 Santa Clara Pacheco Pass, near summit Comment
  UC592127  Nemophila pedunculata H. L. Mason 1929-3-15 5070 Santa Clara San Antonio Valley Mount Hamilton Range, San Antonio Valley Comment
  UC592597  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum H. L. Mason 1937-10-2 11699 Santa Clara 1 mi w San Antonio-Arroyo Bayo (ridge on n side of Arroyo Bayo); Mount Hamilton Range, Arroyo Bayo Comment
  UC635245  Allium serra H. L. Mason 1932-4-17 6934 Santa Clara New Almaden Comment
  UC672203  Rigiopappus leptocladus H. L. Mason 1932-4-17 6939 Santa Clara hill one mi e New Almaden Comment
  UC673616  Micropus californicus var. subvestitus H. L. Mason 1933-4-21 7187 Santa Clara Mount Hamilton Road Comment
  UC908392  Phlox gracilis Herbert L. Mason 1933-4-21 7193 Santa Clara lower slopes of Mt. Hamilton Mt. Hamilton Comment
  UC963811  Navarretia cotulifolia H. L. Mason 1932-4-17 6954 Santa Clara se of Gilroy (Miller and Lux ranch) Comment
  CAS-BOT-BC417829  Sedella pentandra H. L. Mason 1935-5-9 s.n. Santa Clara Tributary to Sulphur Springs Creek, San Antonio Valley, Mt. Hamilton Range 609 Comment
  CAS-BOT-BC421182  Pterostegia drymarioides H. L. Mason; H. A. Borthwick 1921-3-20 s.n. Santa Clara Guadalupe Canon [Canyon] Comment
  CAS-BOT-BC88625  Idahoa scapigera H. L. Mason 1933-4-21 7209 Santa Clara Mount Hamilton Ridge. Headwaters of Alameda Creek north of Packyard Ridge. Comment
  POM257245  Clarkia affinis H. L. Mason 1932-4-17 6947 Santa Clara Uvas - Almaden Road Comment
  POM310908  Eriastrum abramsii H. L. Mason 1935-5-3 8302 Santa Clara Above Arroyo Bayo Creek, Mount Hamilton Range 610 Comment
  POM312613  Boisduvalia glabella H. L. Mason, S. Galen Smith 1948-8-9 8295 Santa Clara Small reservoir, Pacheco Pass, just west of summit Comment
  SEINET200131  Salicornia pacifica H. L. Mason, GL Smith 1948-8-9 8277 Santa Clara About 8 mi W of Gilroy Comment
  SJSU14163  Dodecatheon hendersonii J. Mason & D. 1989-3-13 Santa Clara Calero County Park Comment
  UC1100485  Carex obnupta Herbert L. Mason 1949-7-7 14026 Santa Clara Mouth of Gazos Creek Gazos Creek Comment
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Sep 19 2021
  UC572011  Crassula connata var. eremica H. L. Mason 1935-5-9 Santa Clara tributary to Sulphur Spring Creek Mt. Hamilton Range, San Antonio Valley, Sulphur Spring Creek Comment
  UC634707  Clarkia affinis H. L. Mason 1932-4-17 6947 Santa Clara Uvas-Almaden Road Comment
  UC635663  Downingia pulchella H. L. Mason 1932-4-17 6956 Santa Clara sw of Gilroy (Miller and Lux Ranch) Comment
  UC908567  Linanthus bicolor Herbert L. Mason 1933-4-21 7191 Santa Clara lower slopes of Mount Hamilton road Mount Hamilton Comment
  UC908608  Phlox gracilis Herbert L. Mason 1943-4-15 12563 Santa Clara w side Pacheco Pass (border of Santa Clara-Merced counties) Comment
  UCD132678  Hedypnois cretica H. L. Mason; A. Borthwick 1921-3-20 s.n. Santa Clara Guadalupe Canyon. Comment
  CAS-BOT-BC80663  Cupressus goveniana Herbert Louis Mason 1922-3-28 s.n. Santa Cruz Sandstone cliffs near Bonnie Doon. Comment
  JEPS59746  Chenopodium macrospermum var. halophilum Herbert L. Mason 1927-10-9 4138 Santa Cruz Waddell Creek; marsh at mouth Comment
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Nov 25 2010
  POM257270  Camissonia strigulosa H. L. Mason 1926-6-6 3372 Santa Cruz Near Felton Comment
  POM270462  Actaea rubra subsp. arguta H. L. Mason 1927-7-31 4007 Santa Cruz Mt. Herman, Santa Cruz Mts. Comment
  UC1076246  Lupinus polyphyllus var. polyphyllus Herbert L. Mason 1927-7-31 4014 Santa Cruz Zayante Creek Mt. Herman; Santa Cruz Mts., Mt. Herman Comment
  UC1076340  Equisetum telmateia subsp. braunii Herbert L. Mason 1932-4-28 7027 Santa Cruz Soquel Canyon; Santa Cruz Mts. Comment
  UC1093864  Logfia filaginoides Herbert L. Mason 1947-4-26 13206 Santa Cruz near Felton; Mission Springs Comment
  UC1101165  Polygonum lapathifolium Herbert L. Mason 1927-10-4 4133 Santa Cruz Waddell Creek Ano Nuevo Point (mouth) Comment
  UC1101191  Rumex crispus Herbert L. Mason 1927-10-4 4136 Santa Cruz Ano Nuevo Point Mouth of Waddell Creek Comment
  UC1191116  Pinus attenuata Herbert L. Mason 1931-11-1 5894 Santa Cruz canyon above Greyhound Rock; Ano Nueva Point Comment
  UC555638  Rosa pinetorum Herbert L. Mason 1927-10-4 4128 Santa Cruz mouth of Waddell Creek Ano Nuevo Pt. Comment
  UC634573  Ceanothus cuneatus var. cuneatus H. L. Mason 1926-6-6 3381 Santa Cruz Big Basin Comment
  UC634954  Anemone oregana H. L. Mason 1932-4-28 7025 Santa Cruz Soquel Canyon; Santa Cruz Mtns Comment
  UC635544  Clematis ligusticifolia H. L. Mason 1927-7-31 4008 Santa Cruz Santa Cruz Mts., Mt. Herman Comment
  UC672079  Smilacina stellata Herbert L. Mason 1926-6-6 3373 Santa Cruz San Lorenzo River Felton Comment
  UC672258  Ericameria ericoides H. L. Mason 1927-10-4 4115 Santa Cruz Mouth of Waddell Creek Ano Nuevo Point, Mouth of Waddell Creek Comment
  UC672635  Adiantum aleuticum Herbert L. Mason 1927-7-27 3974 Santa Cruz w end of Big Basin Comment
  UC909051  Navarretia atractyloides Herbert L. Mason 1927-7-27 3978 Santa Cruz n w end Big Basin (Boulder Creek road) Comment
  UCD47141  Quercus parvula var. shrevei Herbert L. Mason 1929-12-1 5513 Santa Cruz Swanton, Santa Cruz County. 304 Comment
  UC1051436  Ludwigia palustris Herbert L. Mason 1955-8-14 14659 Shasta Pitt River at Fall R. Mills Pitt R., Fall River Mills Comment
  UC1055934  Heteranthera dubia Herbert L. Mason 1955-8-14 14660 Shasta Fall River Mills Pit River Comment
  UC1076035  Swertia albicaulis var. nitida Herbert L. Mason 1947-5-15 14751 Shasta 1 mi s Boulder Creek (between La Moine and Dunsmuir) Comment
  UC1101075  Juncus ensifolius Herbert L. Mason and Verne Grant 1947-7-9 13285 Shasta just e Hatchet Creek summit (Highway 299) 1219 Comment
  UC1179017  Cupressus macnabiana Herbert L. Mason 1932-7-21 7113 Shasta hills w Redding Comment
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Oct 13 2006
  UC1191674  Menyanthes trifoliata Herbert L. Mason, Malcolm A. Nobs, S. Galen Smith 1949-5-29 754 Shasta Fall River Mills, at e side of town Fall River Mills Comment
  UC573141  Lithospermum californicum Herbert L. Mason 1929-5-18 5333 Shasta 8 mi n Lamoine Comment
  UC672320  Logfia gallica H. L. Mason 1932-5-25 Shasta Hill above Redding Comment
  UC971879  Limnanthes floccosa subsp. floccosa Charles T. Mason Jr. 1949-4-25 1260 Shasta 6.7 mi w Ingot (along U.S. Hwy 299) Comment
  UC908129  Navarretia intertexta H. L. Mason 1932-5-25 A 7204 Shasta n of Redding Comment
  CAS-BOT-BC246062  Limosella aquatica Herbert L. Mason 1952-7-19 14452 a Sierra 1.5 miles east of Calpine at junction of Calpine with Sierraville-Beckwourth Road, Sierra Valley 1524 Comment
  CAS-BOT-BC389538  Silene nuda Herbert L. Mason 1952-7-19 14452 Sierra Sierra Nevada. 1.5 miles east of Calpine at junction of Calpine with Sierraville-Beckwourth road. Sierra Valley 1524 Comment
  JEPS3589  Downingia bacigalupii Herbert L. Mason 1952-7-17 14384 Sierra 1.5 mi e Calpine (at junction of Calpine with Sierraville-Beckwourth road); Sierra Nevada, Sierra Valley 1524 Comment
  JEPS3603  Castilleja pilosa Herbert L. Mason 1953-6-16 14550 Sierra at junction of the Beckwourth to Sierraville road with the Calpine road; Sierra Valley Comment
  JEPS3637  Castilleja pilosa Herbert L. Mason 1952-7-19 14438 Sierra 1.5 mi e Calpine (at the junction of the road from Beckwourth to Sierraville and that to Calpine); Sierra Valley 1493 Comment
  SACT000424  Beckmannia syzigachne Herbert Mason 1953-7-7 Sierra Sierra Valley; Common Comment
  UC1100559  Cyperus squarrosus Herbert L. Mason 1952-8-17 14495 Sierra 1 1/2 mi. e. Calpine (junction of Calpine and Sierraville, Beckworth Rd.); Sierra Valley Comment
  UC1111017  Viola macloskeyi Herbert L. Mason 1945-9-9 Sierra 1 mi above Sierra City (North Fork of Yuba River); Yuba River Comment
  UC1112284  Elatine heterandra Herbert L. Mason 1952-7-19 14450 Sierra pond 1.5 mi e Calpine (at junction of Calpine with Sierraville-Beckwourth rd); Sierra Valley; E of Calpine at junction of Calpine w/ Sierraville-Beckwourth road, Sierra Valley, Sierra Co. 1524 Comment
  UC908447  Phlox gracilis Herbert L. Mason 1924-6-18 1059 Sierra 1 mi from Gold Lake (near Plumas-Sierra County line) 1981 Comment
  UC965523  Elatine triandra Herbert L. Mason 1952-7-17 14385 Sierra 1.5 mi e Calpine (at junctn of Calpine and Sierraville-Beckwourth Rd); Sierra Nevada, Sierra Valley Comment
  UC965565  Polygonum amphibium var. stipulaceum Herbert L. Mason 1952-7-19 14453 Sierra 1.5 mi e Calpine (at junction of Calpine with Sierra-Beckwourth road); Sierra Nevada, Sierra Valley 1524 Comment
  UC965580  Gnaphalium palustre Herbert L. Mason 1952-7-19 14451 Sierra 1.5 mi e Calpine (at junction with Sierraville-Beckwourth road); Sierra Nevada 1524 Comment
  UC965619  Lilaea scilloides Herbert L. Mason 1952-7-19 14445 Sierra 1.5 mi e Calpine (at junction of Calpine with Sierraville-Beckwourth road); Sierra Valley 1524 Comment
  CAS-BOT-BC87422  Streptanthus polygaloides Herbert L. Mason 1959-5-24 14899 Sierra In canyon of north fork of the Yuba River, exactly opposite Goodyears Bar (above north bank of river). 853 Comment
  RSA0002583  Elatine gracilis H. L. Mason 1952-8-17 14494 Sierra 0.4 mi S Little Truckee River Bridge. 1921 Comment
  SEINET10460780  Porterella carnosula Mason 1952-7-19 Mason 14439 Sierra Margins of marshy pond 1.5 miles east of Calpine near junction of Sierraville-Beckwith road and Calpine road, Sierra Valley Comment
  UCD135548  Equisetum laevigatum Herbert L. Mason 1953-7-7 14557 Sierra Sierra County. Ditch north of Sattley, Sierra Valley. Comment
  UCD138204  Triglochin scilloides Herbert L. Mason 1953-7-7 14556 Sierra Sierra County. At Calpine Junction. Comment
  CAS-BOT-BC419873  Polygonum polygaloides subsp. confertiflorum Herbert L. Mason 1948-7-17 13595 Siskiyou Eastern Grass Lake Comment
  NY790539  Nothochelone nemorosa H. L. Mason 1950-7-16 14062 Siskiyou Road from Happy Camp, California, to Waldo, Oregon Comment
  UC1100238  Alopecurus aequalis Herbert L. Mason 1948-7-18 13617 Siskiyou Grass Lake Comment
  UC1191244  Polygonum polygaloides subsp. confertiflorum Herbert L. Mason 1948-7-17 13595 Siskiyou Eastern Grass Lake Comment
  UC1191629  Navarretia intertexta subsp. propinqua Herbert L. Mason 1948-7-17 13600 Siskiyou Eastern Grass Lake Comment
  UC1192118  Gnaphalium palustre Herbert L. Mason 1948-7-17 13605 Siskiyou Eastern Grass Lake Comment
  UC555455  Trifolium eriocephalum var. eriocephalum H. L. Mason 1931-5-9 5868 Siskiyou 5 mi n Yreka Comment
  UC555597  Trifolium eriocephalum var. eriocephalum H. L. Mason 1929-5-18 5332 Siskiyou s Yreka Comment
  UC635621  Paxistima myrsinites H. L. Mason 1929-5-18 5329 Siskiyou hills along Shasta Creek Canyon Shasta Creek Canyon Comment
  UCD117528  Leucothoe davisiae David T. Mason 1961-8-14 s.n. Siskiyou South end of lake, Heart Lake (ca. 1 mile west of Castle Lake). 701 Comment
  UCD48606  Navarretia intertexta subsp. propinqua Herbert L. Mason 1948-7-17 13600 Siskiyou Eastern Grass Lake, in forested hills, Siskiyou County. Comment
  UCSB1234  Quercus sadleriana Mason, Herbert 1950-7-16 Siskiyou Road from Happy Camp, California, to Waldo, Oregon Comment
  CAS-BOT-BC420064  Polygonum polygaloides subsp. kelloggii Herbert L. Mason 1948-7-18 13621 Siskiyou Grass Lake Comment
  JEPS19296  Lithophragma campanulatum Herbert L. Mason 1947-5-17 14757 Siskiyou along the Scott Mountain Road about 5 mi s Callahan 1463 Comment
  POM312344  Stellaria longipes H. L. Mason 1948-7-18 13611 Siskiyou Grass Lake Comment
  POM312608  Gayophytum racemosum H. L. Mason 1948-7-17 13603 Siskiyou Eastern Grass Lake. Comment
  POM312878  Trifolium eriocephalum subsp. eriocephalum H. L. Mason 1948-7-17 13601 Siskiyou Eastern Grass Lake, in forested hills Comment
  POM312879  Trifolium cyathiferum H. L. Mason 1948-7-17 13604 Siskiyou Eastern Grass Lake, in forested hills Comment
  UC964790  Cordylanthus tenuis subsp. viscidus Herbert L. Mason 1950-7-16 14064 Siskiyou 5 mi s summit of road from Happy Camp CA to Waldo OR Comment
  UC971918  Collomia tinctoria Herbert L. Mason 1950-7-16 14054 Siskiyou road from Happy Camp CA to Waldo Oregon Comment
  UCD109298  Trifolium productum Herbert L. Mason 1948-7-17 13601 Siskiyou Eastern Grass Lake. Comment
  UCD140137  Carex athrostachya Herbert L. Mason 1948-7-18 13610 Siskiyou Grass Lake. Comment
  CAS-BOT-BC223661  Frankenia salina Herbert L. Mason 1945-8-17 12667 Solano 5 miles north of Rio Vista Comment
  CAS-BOT-BC223663  Frankenia salina Herbert L. Mason 1945-8-17 12667 Solano 5 miles north of Rio Vista Comment
  UC1099841  Potamogeton pectinatus Herbert L. Mason, Verne Grant 1946-7-5 12903 Solano in Lake Chabot water reservoir just n of Vallejo; Lake Chabot Comment
  UC1100030  Ruppia maritima Herbert L. Mason 1923-10-6 770 Solano Suisun Marsh Comment
  UC1100773  Schoenoplectus acutus var. occidentalis Herbert L. Mason, Verne Grant 1947-6-26 13265 Solano Suisun Marsh Cordelia Slough, Suisun Marsh Comment
  UC1100795  Scirpus californicus Herbert L. Mason, Verne Grant 1947-6-26 13267 Solano Suisun Marsh Cordelia Slough, Suisun Marsh Comment
  UC1100888  Bolboschoenus maritimus Herbert L. Mason and Verne Grant 1947-6-26 13269 Solano Cordelia Slough, Suisun Marsh. Comment
  UC1100914  Scirpus maritimus Herbert L. Mason, Verne Grant 1947-6-26 13262 Solano Suisun Marsh Cordelia Slough, Suisun Marsh Comment
  UC1100942  Juncus balticus Herbert L. Mason and Malcolm A. Nobs 1949-4-27 725 Solano Suisun State Game Refuge Comment
  UC1191315  Rumex violascens Herbert L. Mason 1947-6-26 13255 Solano Suisun Marshes Comment
  UC1192136  Cotula coronopifolia Herbert L. Mason and Verne Grant 1947-6-26 13241 Solano Cordelia Slough; Suisun Marsh Comment
  UC1192146  Achillea millefolium Herbert L. Mason 1945-8-16 12659 Solano near Suisun Bay; Grizzly Island Comment
  UC1192191  Pluchea odorata var. odorata Herbert L. Mason 1945-8-16 12651 Solano near Suisun Bay; Grizzly Island Comment
  UC1192228  Grindelia hirsutula Herbert L. Mason 1945-8-16 12654 Solano near Suisun Bay; Grizzly Island Comment
  UC1240187  Typha Herbert L. Mason 1947-6-26 13257 Solano Cordelia Slough Suisun Marsh; , Cordelia Slough Comment
  UC555494  Trifolium bifidum var. decipiens H. L. Mason 1928-5-4 4511 Solano Greene Valley Comment
  UC971794  Limnanthes douglasii subsp. rosea Charles T. Mason Jr. 1949-4-23 1251 Solano e Dixon-Vacaville airport (along US Hwy 40) Comment
  UCD113421  Rosa californica Herbert L. Mason; Verne Grant 1947-6-26 13261 Solano Cordelia Slough, Suisun Marsh. Comment
  UCD128327  Achillea millefolium Herbert L. Mason; Verne Grant 1947-6-26 13252 Solano Cordelia Slough, Suisun Marsh. Comment
  UCD132949  Helminthotheca echioides Herbert L. Mason; Verne Grant 1947-6-26 13273 Solano Cordelia Slough, Suisun Marsh. Comment
  CAS-BOT-BC111626  Schoenoplectus californicus Herbert L. Mason; Verne Grant 1946-7-5 12904 Solano In 10-16 in. of water in Lake Chabot water reservoir just north of Vallejo. Comment
  CAS-BOT-BC31351  Bolboschoenus robustus Herbert L. Mason; Verne Grant 1947-6-26 13269 Solano Cordelia Slough, Suisun Marsh. Comment
  CAS-BOT-BC453930  Potamogeton pectinatus Herbert L. Mason; Verne Grant 1946-7-5 12903 Solano In Lake Chabot water reservoir just north of Vallejo Comment
  POM312846  Schoenoplectus maritimus H. L. Mason 1945-8-16 12660 -a Solano Grizzly Island, near Suisun Bay Comment
  POM312896  Juncus phaeocephalus var. paniculatus H. L. Mason, Verne Grant 1946-7-5 12911 Solano In Lake Chabot water reservoir just north of Vallejo. Comment
  SEINET3991329 Image available Potamogeton nodosus Herbert L. Mason, Verne Grant 1958-7-5 12907 Solano In 10-16 inches of water in Lake Chabot water reservoir just north of Vallejo Comment
  UC1192335  Polygonum amphibium var. emersum Herbert L. Mason 1945-8-17 12665 Solano n Rio Vista Comment
  UCD97714  Atriplex semibaccata Herbert L. Mason 1945-8-16 12658 Solano Grizzly Island, near Suisun Bay. Comment
  CAS-BOT-BC226736  Leptosiphon latisectus Herbert L. Mason 1928-4-8 4289 Sonoma Coast, 2 miles north of Fort Ross Comment
  CAS-BOT-BC322609  Micropus amphibolus Herbert L. Mason 1934-4-28 8081 Sonoma Jensen's Ranch, head of Dohrman Creek four miles west of Healdsburg Comment
  JEPS17413  Packera H. L. Mason 1934-4-28 8060 Sonoma 2 or 3 mi w Healdsburg (headwaters of creek); Jensen Ranch, Dorman Creek Comment
  JEPS65919  Trifolium barbigerum var. andrewsii H. L. Mason 1931-4-12 Sonoma Fulton Comment
  POM312607  Ludwigia palustris var. pacifica H. L. Mason 1946-7-4 12886 Sonoma Pitkin Marsh, between Santa Rosa and Forestville. Comment
  UC1191412  Salicornia europaea Herbert L. Mason 1946-7-29 12956 -A Sonoma 0.5 mi n Sears Point Comment
  UC1191869  Castilleja uliginosa Herbert L. Mason 1946-7-4 12892 Sonoma between Santa Rosa and Forestville (Pitkin Marsh); Pitkin Marsh Comment
  UC555362  Trifolium wormskioldii H. L. Mason 1930-6-1 5648 Sonoma mouth of Gualala River Comment
  UC555512  Physocarpus capitatus H. L. Mason Jun 1930 5642 Sonoma Gualala River, mouth Comment
  UC555629  Potentilla anserina subsp. pacifica H. L. Mason June 1930 5646 Sonoma mouth of the Gualala River Comment
  UC566872  Yabea microcarpa H. L. Mason June 1930 5656 Sonoma Mouth of Gualala River Comment
  UC567067  Cupressus sargentii Mason 1932-7-19 123 Sonoma 3/5 mi nw Los Alamos School; Santa Rosa Quadrangle 571 Comment
  UC570922  Tellima grandiflora H. L. Mason Jun 1930 5666 Sonoma mouth of Gualala River Comment
  UC571086  Arctostaphylos densiflora H. L. Mason 1931-3-7 5806 Sonoma 12 mi w Santa Rosa; Vine Hill School Comment
  UC571127  Geranium core-core H. L. Mason 1928-4-7 4276 Sonoma mouth of Russian River, Jenner Jenner; Russian River, Jenner Comment
  UC581116  Hesperevax sparsiflora var. sparsiflora H. L. Mason 1934-4-28 8082 Sonoma Jensen's Ranch; Dohrmann Creek Comment
  UC581533  Viola adunca H. L. Mason June 1930 5663 Sonoma mouth of Gualala River Comment
  UC635130  Saxifraga integrifolia H. L. Mason 1931-3-7 5808 Sonoma 12 mi w of Santa Rosa (Vine Hill School); Vine Hill School Comment
  UC635613  Eschscholzia californica H. L. Mason 1930-6-1 5654 Sonoma Gualala River; mouth Comment
  UC635627  Euonymus occidentalis var. occidentalis H. L. Mason June 1930 5661 Sonoma mouth of Gualala R. Comment
  UC672383  Phacelia californica Herbert L. Mason 1928-7-10 4887 Sonoma Jenner Russian River (mouth of river) Comment
  UC672477  Collinsia sparsiflora var. arvensis H. L. Mason 1928-4-8 4298 Sonoma fields near Sebastopol Comment
  UC907883  Gilia capitata subsp. pacifica Herbert L. Mason 1928-7-10 4886 Sonoma Jenner Comment
  UC908664  Linanthus jepsonii Herbert L. Mason 1940-5-21 12293 Sonoma Head of Maycama Creek Knights Valley Comment
  UC909093  Navarretia intertexta Herbert L. Mason 1940-5-21 12295 Sonoma Head of Mayacama Creek Knights Valley Comment
  UC912248  Arnica discoidea Herbert L. Mason 1934-4-28 8063 Sonoma ridge ne of, (head of Dohrman Creek) Jensen's Ranch; Dohrman Creek Comment
  UC912416  Vaccinium parvifolium Herbert L. Mason 1928-7-11 4892 Sonoma 2 miles north of Fort Ross Comment
  UC912489  Delphinium Herbert L. Mason 1928-4-13 4326 Sonoma wet marsh and pools near Petaluma Comment
  UC912568  Delphinium hesperium subsp. hesperium Herbert L. Mason 1934-4-28 8088 Sonoma Jensen's Ranch Comment
  UCD141234  Rhynchospora capitellata Herbert L. Mason 1946-7-4 12881 Sonoma Pitkin Marsh, between Santa Rosa and Forestville. Comment
  UCD53597  Agrostis stolonifera Herbert L. Mason 1946-7-4 12888 Sonoma Pitkin Marsh, between Santa Rosa and Forestville. Comment
  CAS-BOT-BC348622  Micropus californicus var. californicus H. L. Mason 1934-4-28 8090 Sonoma Jensen's Ranch (near orchard), Dohrmann Creek Comment
  CAS-BOT-BC456160  Zannichellia palustris Herbert L. Mason 1928-4-13 4323 Sonoma Near Petaluma Comment
  CDA8201  Lessingia ramulosa M. Mason 1976-7-6 Sonoma Airport Road, Sonoma County Airport, northwest of Santa Rosa. 0 Comment
  SEINET10905986  Campanula californica Mason 1946-7-4 Mason 12894 Sonoma Pitkin Marsh, between Santa Rosa and Forestville Comment
  SEINET196703  Navarretia pubescens Herbert L. Mason 1940-5-21 12294 Sonoma Head of Mayacama Creek in Knights Valley. Comment
  UC1076192  Trifolium barbigerum Herbert L. Mason 1934-4-28 8095 Sonoma Hwy betw Healdsburg and Santa Rosa Comment
  UC673605  Vicia sativa subsp. nigra Herbert L. Mason 1926-3-20 2750 Sonoma s of Calistoga (marshes, along railroad right-of-way) Comment
  UC912239  Cotula coronopifolia Herbert L. Mason 1926-3-20 2744 Sonoma s Calistoga (along rr right-of-way) Comment
  UCD136866  Polypodium glycyrrhiza Herbert L. Mason 1925-11-26 2498 Sonoma Monte Rio. Comment
  CAS-BOT-BC266444  Campanula exigua H. L. Mason 1935-5-9 8310 Stanislaus Slopes of Red Mountains, Arroyo del Puerto, Mount Hamilton Range Comment
  JEPS103236  Fritillaria affinis Judy Mason 2002-4-15 Stanislaus N side of Del Puerto Canyon Road, Mount Hamilton Range Comment
  UC1100196  Cenchrus longispinus Herbert L. Mason and S. Galen Smith 1948-7-30 8259 Stanislaus on Crow's Landing raod about 7 mi s Modesto Comment
  UC1101335  Myosurus minimus subsp. apus Herbert L. Mason 1952-4-26 14275 b Stanislaus 3 mi e of San Joaquin River (Hilmar Road near Crows Landing Road); Hilmar Road Comment
  UC1738077  Myosurus minimus subsp. apus H. L. Mason 1956-5-24 14290 C-8 Stanislaus 6 mi NE of Crows Landing (at intersection of Hilmar and Morgan Ave., near abandoned gas well.) Comment
  UC1738079  Myosurus minimus H. L. Mason 1956-4-30 14274 A-3 Stanislaus 5 mi NE of Crows Landing ( on Crows Landing Rd.) Comment
  UC1738080  Myosurus minimus H. L. Mason 1956-4-30 14274 B-1 Stanislaus 5 mi NE of Crows Landing (on Crows Landing Rd.) Comment
  UC555369  Trifolium ciliolatum H. L. Mason 1929-4-7 5184 Stanislaus ca 10 mi above Oakdale; Sierra foothills Comment
  UC570876  Lithophragma Herbert L. Mason 1929-4-7 5176 Stanislaus about 10 mi above Oakdale (basaltic bluffs); Sierra foothills Comment
  UC573062  Pectocarya pusilla H. L. Mason 1929-4-7 5180 Stanislaus bluffs ca 10 mi above Oakdale; Sierra Foothills Comment
  UC632768  Rafinesquia californica H. L. Mason 1935-5-9 8311 Stanislaus slopes Arroyo del Puerto; Mount Hamilton Range, slopes of Arroyo del Puerto 457 Comment
  UC635252  Allium serra H. L. Mason 1929-4-7 5187 Stanislaus about 10 mi e Oakdale; Sierra Nevada Foothills Comment
  UC673531  Lepidium oxycarpum H. L. Mason 1930-4-1 5550 Stanislaus 2 mi s Knights Ferry (8 mi e of Oakdale) Comment
  CAS-BOT-BC300929  Eriophyllum jepsonii Herbert L. Mason 1935-5-8 10008 Stanislaus Patterson Road, twenty miles from mouth of Arroyo del Puerto, Mount Hamilton Range 533 Comment
  CAS-BOT-BC347366  Malacothrix floccifera H. L. Mason 1935-5-9 8312 Stanislaus Slopes of Red Mountains, Arroyo del Puerto, Mount Hamilton Range Comment
  CAS-BOT-BC391325  Velezia rigida Herbert L. Mason 1948-5-31 13571 Stanislaus Stanislaus River, near Knight's Ferry Comment
  CAS-BOT-BC83385  Myosurus minimus Herbert L. Mason 1952-5-18 14290 Stanislaus On Hilmar Road, east of the San Joaquin River about 1 mile from the junction with the Crows Landing Road. Comment
  POM312430  Myosurus minimus var. filiformis H. L. Mason 1952-4-26 14274 Stanislaus 3 miles east of the San Joaquin River; Hilmar Road near Crows Landing Road Comment
  POM312433  Myosurus minimus H. L. Mason 1952-5-18 14288 Stanislaus Near abandoned gas well,Hilmar Road east of the San Joaquin River about 1 mile from the jct. with the Crows Landing Road Comment
  CAS-BOT-BC114215  Cyperus strigosus Herbert L. Mason 1945-9-18 12702 Sutter Sutter By-pass near bridge on Yuba City-Knight's Landing Highway. Comment
  CAS-BOT-BC203385  Hibiscus lasiocarpos var. occidentalis Herbert L. Mason 1945-9-19 12726 Sutter West Butte Road on the east side of Butte Creek Comment
  CAS-BOT-BC243648  Setaria pumila Herbert L. Mason 1945-9-18 12712 Sutter Pennington Road between Live Oak and Pennington Comment
  CAS-BOT-BC259745  Paspalum distichum Herbert L. Mason 1945-9-18 12701 Sutter Sutter Bypass near bridge on Yuba City - Knight's Landing Highway Comment
  UC1100429  Carex barbarae Herbert L. Mason, Verne Grant 1946-9-4 13100 Sutter Butte Sink, Colusa Gun Club Comment
  UC1100536  Cyperus eragrostis Herbert L. Mason 1945-9-18 12704 Sutter overflow lands of Sutter By-pass near bridge on Yuba City-Knight's Landing Hwy. Comment
  UC1100634  Cyperus strigosus Herbert L. Mason 1945-9-18 12702 Sutter Sutter By-pass near bridge on Yuba City-Knight's Landing Hwy. Comment
  UC1100680  Scirpus acutus var. occidentalis Herbert L. Mason 1945-9-18 12700 Sutter margins of pools on overflow lands of Sutter By-pass near bridge of Yuba City- Knight's Landing Highway; overflow lands of Sutter By-pass Comment
  UC1179044  Blennosperma nanum var. nanum Herbert L. Mason 1947-3-30 13164 Sutter 1 mi n of West Butte Comment
  UC1191830  Lycopus americanus Herbert L. Mason 1945-9-18 12709 Sutter near bridge on Yuba City-Knight's Landing Hwy. Sutter By-pass Comment
  UC1191958  Eryngium castrense Herbert L. Mason and Verne Grant 1946-9-4 13101 Sutter Colusa Gun Club Comment
  UC1192276  Hibiscus lasiocarpos Herbert L. Mason 1945-9-19 12726 Sutter W. Butte Rd. on e. side of Butte creek Comment
  POM312404  Verbena brasiliensis H. L. Mason, Verne Grant 1946-8-14 13039 Sutter Between Live Oak and Pennington. Comment
  POM312509  Aster lentus H. L. Mason 1945-9-18 12708 Sutter Margins of pools on overflow lands of Sutter by-pass near bridge on Yuba City-Knight's Landing highway. Comment
  SEINET200024  Cyperus difformis Herbert L. Mason 1945-9-18 12705 Sutter Sutter bypass near bridge on Yuba City-Knight's Landing Highway. Comment
  UC1199899  Triteleia hyacinthina Herbert L. Mason 1958-4-3 14899 a Tehama on Paynes Creek Road ca 4 mi e Red Bluff; Paynes Creek Comment
  UC1076045  Antennaria dimorpha Herbert L. Mason 1947-5-17 14777 Trinity summit of, (Trinity-Siskiyou County line) Scott Mountain Grade Comment
  UC634824  Darlingtonia californica Herbert L. Mason 1926-4-19 2887 Trinity Comment
  UC971910  Campanula scouleri Herbert L. Mason 1950-7-15 14059 Trinity summit of grade Scott Mountain (on hillslopes) Comment
  UCD138372  Triantha occidentalis subsp. occidentalis Herbert L. Mason 1950-7-15 14052 Trinity Scott Mountain. Comment
  UCD139966  Narthecium californicum Herbert L. Mason 1950-7-15 14053 Trinity Scott Mountain. Comment
  UC1076514  Plagiobothrys canescens Herbert L. Mason 1938-4-14 11720 Tulare 4 mi w Exeter (Rocky Hill) Comment
  UC1178990  Triphysaria micrantha Herbert L. Mason 1938-4-14 11708 Tulare 4 mi e Exeter Comment
  UC1179046  Logfia filaginoides Herbert L. Mason 1935-5-1 8368 Tulare n Kernville; Sequoia National Forest, Kern River Comment
  UC555415  Lotus strigosus H. L. Mason 1929-3-23 5074 Tulare 3 mi above Springville; Middle Tule River Comment
  UC570992  Rhamnus ilicifolia Herbert L. Mason 1929-3-23 5085 Tulare 3 mi above Springville; Middle Tule River Comment
  UC629718  Parvisedum congdonii H. L. Mason 1938-4-14 11703 Tulare Rocky Hill e of Exeter; Rocky Hill 304 Comment
  UC634685  Tetrapteron graciliflorum H. L. Mason 1929-3-23 5082 Tulare three mi above Springville; Middle Tule River Comment
  UC907996  Linanthus liniflorus Herbert L. Mason 1935-5-1 8366 Tulare n of Kernville; Sequoia National Forest, Kern River Comment
  UC908400  Gilia capitata subsp. abrotanifolia Herbert L. Mason 1935-5-1 8365 Tulare Kern River n Kernville (Sequoia National Forest); , Kern River n of Kernville Comment
  UC908454  Allophyllum gilioides subsp. gilioides Herbert L. Mason 1935-5-1 8361 Tulare Kern R. n. of Kernville; Sequoia Nat'l Forest, Kern R. Comment
  UC908570  Gilia tricolor subsp. diffusa Herbert L. Mason 1938-4-14 11712 Tulare four mi e Exeter; e of Exeter 304 Comment
  UC962103  Gilia ochroleuca subsp. bizonata H. L. Mason 1935-5-1 8360 Tulare Kern River n Kernville; Sequoia National Forest, Kern River Comment
  UC592191  Nemophila pulchella H. L. Mason 1938-5-10 11815 Tulare near Auckland (on road to General Grant National Park); on rd to General Grant National Park, near Auckland 457 Comment
  UC604425  Parvisedum congdonii H. L. Mason 1938-5-10 11820 Tulare near Auckland Ranch on General Grant National Park Road sw of Badger; General Grant National Park Road 457 Comment
  CAS-BOT-BC13295  Agoseris parviflora Herbert L. Mason 1936-7-27 11371 Tuolumne Gaylor Lakes west of Tioga Pass 3200 Comment
  CAS-BOT-BC135278  Phoradendron juniperinum Herbert L. Mason 1925-7-12 2156 Tuolumne Hog Ranch, Mather, Sierra Nevada Comment
  CAS-BOT-BC135926  Brasenia schreberi Herbert L. Mason 1936-7-15 11246 Tuolumne Margin of pool 1/2 mile west of Mather 1371 Comment
  CAS-BOT-BC135927  Brasenia schreberi Herbert L. Mason 1937-7-22 11600 Tuolumne Swamp Lakes, just south of Miguel meadows, west of Hetch Hetchy Dam - Yosemite National Park 1584 Comment
  CAS-BOT-BC165822  Clarkia williamsonii H. L. Mason 1925-7-4 2149 Tuolumne Near Mather Comment
  CAS-BOT-BC20832  Carex multicostata H. L. Mason 1938-7-30 12058 Tuolumne Yosemite National Park. South end of Tiltill Mountain. 2590 Comment
  CAS-BOT-BC261387  Eriogonum nudum var. deductum Herbert L. Mason 1938-7-28 12027 Tuolumne Sierra Nevada, Yosemite National Park. Macomb Ridge, north of Tiltill Mountain 3017 Comment
  CAS-BOT-BC31324  Carex lenticularis var. impressa H. L. Mason 1938-7-10 11919 Tuolumne South island in Swamp Lake, west of Hetch Hetchy. Yosemite National Park. 1584 Comment
  CAS-BOT-BC325493  Packera werneriifolia Herbert Louis Mason 1936-7-24 11329 Tuolumne White Mountain, Mount Conness Range, Sierra Nevada. 3505 Comment
  CAS-BOT-BC34388  Carex cusickii H. L. Mason 1938-7-10 11932 Tuolumne Yosemite National Park. South island in Swamp Lake, west of Hetch Hetchy. 1584 Comment
  CAS-BOT-BC364779  Sericocarpus oregonensis subsp. californicus Herbert L. Mason 1937-7-21 11556 Tuolumne Sierra Nevada, Yosemite National Park. Miguel Meadow, west of Hetch Hetchy 1584 Comment
  CAS-BOT-BC413676  Persicaria amphibia Herbert L. Mason 1937-7-22 11616 Tuolumne Swamp Lakes, just west of Hetch Hetchy Dam and south of MIguel Meadows, Yosemite National Park 1584 Comment
  CAS-BOT-BC418600  Polygonum minimum Herbert L. Mason 1938-7-22 11966 Tuolumne Sierra Nevada, Yosemite National Park. Vernon Lake Trail, north of Hetch Hetchy 2072 Comment
  CAS-BOT-BC436725  Luzula comosa var. laxa Herbert L. Mason; Lawrence W. Reinecke 1937-7-22 11608 Tuolumne Yosemite National Park, Swamp Lakes, just W of Hetch Hetchy Dam and S of Miguel Meadow 1584 Comment
  CAS-BOT-BC51003  Ceanothus integerrimus Herbert L. Mason 1923-7-14 596 Tuolumne Mather Comment
  CAS-BOT-BC51004  Ceanothus integerrimus Herbert L. Mason 1925-6-27 2125 Tuolumne Mather Comment
  CAS-BOT-BC59246  Antennaria corymbosa H. L. Mason 1923-7-30 675 Tuolumne Lyell Fork of the Tuolumne River Comment
  CAS-BOT-BC77324  Antennaria media Herbert L. Mason 1936-7-24 11344 Tuolumne White Mountain, Conness Range 3596 Comment
  CAS-BOT-BC9342  Carex feta Herbert L. Mason 1958-8-9 14854 Tuolumne Sierra Nevada, Yosemite National Park. Swamp Lake, west of Hetch Hetchy Dam 1584 Comment
  JEPS21877  Utricularia minor Herbert L. Mason 1938-7-9 11888 Tuolumne w. Hetch Hetchy Dam (just s. of Miguel Meadows, Swamp Lake); Yosemite Nat'l Park, Swamp Lake 1584 Comment
  POM270508  Aquilegia pubescens H. L. Mason 1923-7-31 678 Tuolumne Dana Fork, Sierra Nevada Mtns Comment
  POM312920  Luzula spicata H. L. Mason 1936-7-27 11390 Tuolumne Gaylor Lakes, Yosemite National Park. 3049 Comment
  POM312962  Sparganium angustifolium H. L. Mason 1922-8-19 359 Tuolumne Dog Lake, Tuolumne Meadows, Yosemite National Park. 2744 Comment
  SEINET197688  Navarretia divaricata H. L. Mason 1941-7-12 12478 Tuolumne Yosemite National Park; Miguel Meadows, Yosemite National Park Comment
  UC1014774  Dodecatheon jeffreyi H. L. Mason 1922-8-1 339 Tuolumne Tuolumne Meadows Sierra Nevada Mountains, Yosemite National Park (Yosemite National Park) Comment
  UC1014776  Dodecatheon jeffreyi H. L. Mason 1923-8-1 685 Tuolumne along trail from Tuolumne Meadows to Elizabeth Lake (Yosemite National Park); Sierra Nevada Mountains, Yosemite National Park Comment
  UC1025282  Draba breweri Herbert L. Mason 1936-7-24 11336 A Tuolumne White Mountain Sierra Nevada, Conness Range Comment
  UC1039577  Dodecatheon jeffreyi H. L. Mason 1922-8-25 350 Tuolumne Tuolumne Meadows Sierra Nevada Mountains, Yosemite National Park (Yosemite National Park) Comment
  UC1039578  Dodecatheon jeffreyi H. L. Mason 1922-8-22 345 Tuolumne Tuolumne Meadows Sierra Nevada Mountains, Yosemite National Park Comment
  UC1039583  Dodecatheon jeffreyi H. L. Mason 1923-8-1 685 Tuolumne along trail from Tuolumne Meadows to Elizabeth Lake (Yosemite National Park); Sierra Nevada Mountains, Yosemite National Park Comment
  UC1039594  Phoradendron libocedri Herbert L. Mason 1925-7-12 2156 Tuolumne Yosemite Nat'l Park, Mather, Hog Ranch Sierra Nevada, Yosemite Nat'l Park, Mather, Hog Ranch Comment
  UC1039789  Castilleja miniata H. L. Mason 1925-7-29 2186 Tuolumne Hog Ranch, Mather; Mather Comment
  UC1039997  Lupinus covillei Herbert L. Mason 1936-7-22 11261 Tuolumne n Tuolumne Meadows (Delaney Creek, Yosemite National Park); Sierra Nevada, Yosemite National Park, Delaney Creek 2987 Comment
  UC1039999  Saxifraga aprica H. L. Mason 1936-7-27 11393 Tuolumne Gaylor Lakes w of Tioga Pass; Sierra Nevada, Yosemite National Park, Gaylor Lakes 3200 Comment
  UC1056292  Stellaria longipes var. longipes Herbert L. Mason 1940-7-7 12324 Tuolumne s of Miguel Meadow (Poison Meadow); Sierra Nevada, Yosemite National Park, Poison Meadow Comment
  UC1056297  Carex utriculata Herbert L. Mason 1939-7-11 12114 Tuolumne marsh 1/2 mi below Swamp Lake; Yosemite National Park 1554 Comment
  UC1056298  Carex feta Herbert L. Mason 1939-7-11 12116 Tuolumne marsh 1/2 mi below Swamp Lake Comment
  UC1056299  Downingia montana Herbert L. Mason 1940-7-7 12323 Tuolumne s of Miguel Meadow and Swamp Lake; Yosemite National Park, Poison Meadow Comment
  UC1056428  Lewisia triphylla Herbert L. Mason 1936-7-10 11192 Tuolumne se White Wolf (Lukens Lake); Sierra Nevada, Yosemite National Park, Lukens Lake 2560 Comment
  UC1056448  Achillea millefolium Herbert L. Mason 1936-7-22 11268 Tuolumne at, n of Ragged Peak Young Lake; Sierra Nevada, Yosemite National Park 3017 Comment
  UC1056451  Trifolium monanthum subsp. parvum Herbert L. Mason 1936-7-26 11365 Tuolumne near Gaylor Lakes (Moraine Flat, w of Tioga Pass); Sierra Nevada, Yosemite National Park 3048 Comment
  UC1056454  Thysanocarpus curvipes Herbert L. Mason 1936-3-20 11011 Tuolumne three mi above Tuolumne Comment
  UC1056974  Montia chamissoi Herbert L. Mason 1936-7-27 11384 Tuolumne Gaylor Lakes w of Tioga Pass (Yosemite National Park); Sierra Nevada, , Gaylor Lakes 3200 Comment
  UC1056992  Drosera rotundifolia Herbert L. Mason and L. W. Reinecke 1957-7-22 11578 Tuolumne just s Miguel Meadows (in hills just w of Hetch Hetchy); Sierra Nevada, Yosemite National Park, Swamp Lake 1584 Comment
  UC1076304  Orobanche uniflora subsp. occidentalis Herbert L. Mason 1924-5-29 1028 Tuolumne Near top of Tuolumne Canyon, Mather. Comment
  UC1076400  Lonicera interrupta Herbert L. Mason 1925-7-29 2184 Tuolumne Hog Ranch Mather Comment
  UC1076421  Alnus rhombifolia Herbert L. Mason 1925-7-30 2187 Tuolumne Smith Peak trail from Mather Comment
  UC1076538  Pellaea breweri Herbert L. Mason 1938-7-29 12048 Tuolumne w of Tower Peak (Saurian Crest); Sierra Nevada, Yosemite Nat'l Park 3200 Comment
  UC1076539  Cheilanthes gracillima Herbert L. Mason 1938-7-25 11986 Tuolumne n side of Jack Main Canyon (slopes of Mahan Peak); Sierra Nevada, Yosemite Nat'l Park, Jack Main Canyon 2438 Comment
  UC1076542  Phacelia eisenii var. eisenii Herbert L. Mason 1938-7-25 12013 Tuolumne Deep Lake Sierra Nevada, Yosemite National Park, Mahan Peak, Jack Main (s base of peak) 2438 Comment
  UC1077086  Cuscuta californica Herbert L. Mason 1938-7-8 11886 Tuolumne w of Hetch Hetchy; Yosemite National Park, Miguel Meadow 1584 Comment
  UC1077090  Geranium californicum Herbert L. Mason 1938-7-8 11884 Tuolumne w of Hetch Hetchy; Yosemite National Park, Miguel Meadows 1584 Comment
  UC1077093  Erysimum perenne Herbert L. Mason 1938-7-28 12033 Tuolumne e Tilden Lake; Sierra Nevada, Yosemite National Park, Macomb Ridge 3048 Comment
  UC1081546  Boechera sparsiflora Herbert L. Mason 1936-3-20 11001 Tuolumne 3 mi above Tuolumne; Sierra Nevada Comment
  UC1081572  Pinus albicaulis Herbert L. Mason 1936-7-27 11381 Tuolumne w Tioga Pass; Yosemite National Park, Gaylor Lakes 3200 Comment
  UC1081578  Botrychium simplex Herbert L. Mason 1938-7-7 11865 Tuolumne W of Hetch-Hetchy (Miguel Meadow); Sierra Nevada, Yosemite National Park 1584 Comment
  UC1081579  Cheilanthes gracillima Herbert L. Mason 1938-7-25 12005 a Tuolumne s base of Mahan Peak (Deep Lake); Sierra Nevada, Yosemite Nat'l Park, Jack Main Canyon 2438 Comment
  UC1083119  Potentilla fruticosa Herbert L. Mason 1936-7-25 11375 Tuolumne w of Tioga Pass; Sierra Nevada, Yosemite National Park, Gaylor Lakes 3200 Comment
  UC1083121  Dicentra uniflora Herbert L. Mason 1936-7-27 11385 Tuolumne w of Tioga Pass (Gaylor Lakes); Sierra Nevada, Yosemite National Park 3200 Comment
  UC1083126  Thalictrum fendleri Herbert L. Mason 1936-7-27 11367 Tuolumne w Tioga Pass; Sierra Nevada, Yosemite National Park, Gaylor Lakes 3200 Comment
  UC1083216  Alnus rhombifolia Herbert L. Mason and L. W. Reinecke 1937-7-22 11596 Tuolumne s Miguel Meadows (in hills just w of Hetch Hetchy); Sierra Nevada, Yosemite National Park, Swamp Lake 1584 Comment
  UC1083309  Juniperus grandis Herbert L. Mason 1923-7-29 670 Tuolumne Lamberts Dome Sierra Nevada Mountains Comment
  UC1093873  Rhamnus rubra Herbert L. Mason 1938-7-25 12003 Tuolumne s base Mahan Peak (Deep Lake, Jack Main Canyon, Yosemite National Park, Sierra Nevada); Sierra Nevada, Yosemite National Park, Deep Lake 2438 Comment
  UC1093951  Polygonum minimum Herbert L. Mason 1938-7-22 11966 Tuolumne Vernon Lake trail n Hetch Hetchy; Yosemite National Park 2072 Comment
  UC1099859  Potamogeton gramineus Herbert L. Mason 1937-7-22 11624 Tuolumne Swamp Lakes just s of Miguel Meadows (and w of Hetch Hetchy Dam); Yosemite National Park 1584 Comment
  UC1102952  Carex feta Herbert L. Mason 1958-8-9 14854 Tuolumne W of Hetch Hetchy Dam (Swamp Lake); Sierra Nevada, Yosemite National Park 1584 Comment
  UC1102957  Eleocharis bella Herbert L. Mason 1958-8-6 14868 Tuolumne meadow at Swamp Lake, W side of Hetch Hetchy Dam Sierra Nevada, Yosemite National Park 1584 Comment
  UC1102959  Carex vesicaria Herbert L. Mason 1958-8-9 14887 Tuolumne w Hetch Hetchy Dam (Swamp Lake); Sierra Nevada, Yosemite National Park 1584 Comment
  UC1102972  Panicum acuminatum var. acuminatum Herbert L. Mason 1958-8-9 14871 Tuolumne w side Hetch Hetchy Dam (Swamp Lake Area); Sierra Nevada, Yosemite National Park, w side Hetch Hetchy d 1584 Comment
  UC1102977  Alisma plantago-aquatica Herbert L. Mason 1958-8-9 14882 Tuolumne w of Hetch Hetchy Dam; Sierra Nevada, Yosemite National Park, Swamp Lake 1584 Comment
  UC1102978  Scirpus congdonii Herbert L. Mason 1958-8-9 14888 Tuolumne w Hetch Hetchy Dam (Swamp Lake, Sierra Nevada, Yosemite National Park); Sierra Nevada, Yosemite National Park, Swamp Lake 1584 Comment
  UC1108811  Trisetum spicatum Herbert L. Mason 1936-7-24 11342 Tuolumne White Mountain; Conness Range Comment
  UC1108816  Elymus elymoides subsp. elymoides Herbert L. Mason 1936-7-24 11333 Tuolumne White Mountain Sierra Nevada, Conness Range Comment
  UC1108828  Muhlenbergia montana Herbert L. Mason 1938-7-22 11972 Tuolumne Vernon Lake Trail n Hetch Hetchy Valley; Sierra Nevada, Yosemite National Park 1981 Comment
  UC1108829  Elymus sierrae Herbert L. Mason 1938-7-28 12029 Tuolumne Macomb Ridge Sierra Nevada, Yosemite National Park (n of Tiltill Mt.) 3017 Comment
  UC1108832  Calamagrostis purpurascens Herbert L. Mason 1938-7-28 12047 Tuolumne n Tiltill Mountain; Yosemite National Park, Macomb Ridge 3017 Comment
  UC1110530  Agrostis scabra Herbert L. Mason 1938-7-25 12011 Tuolumne e base Mahan Peak; Sierra Nevada, Yosemite National Park Comment
  UC1110533  Festuca saximontana var. purpusiana Herbert L. Mason 1936-7-24 11334 Tuolumne Conness Range Sierra Nevada, White Mountain Comment
  UC1111003  Melica stricta Herbert L. Mason 1938-7-26 12006 Tuolumne s base Mahan Peak (Deep Lake, Jack Main Canyon); Sierra Nevada, Yosemite National Park 2438 Comment
  UC1111021  Dodecatheon jeffreyi H. L. Mason 1922-7-16 308 Tuolumne Hog Ranch Sierra Nevada Mountains, Yosemite National Park (Mather) Comment
  UC1111026  Potamogeton robbinsii Herbert L. Mason 1958-8-9 14847 Tuolumne Swamp Lake w of Hetch Hetchy Dam; Sierra Nevada, Yosemite National Park 1584 Comment
  UC1111562  Mimulus laciniatus Herbert L. Mason 1938-7-25 12004 Tuolumne s base Mahan Peak (Jack Main Canyon, Deep Lake); Sierra Nevada, Yosemite National Park 2438 Comment
  UC1111567  Dicentra uniflora Herbert L. Mason 1938-7-28 12024 Tuolumne e of Tilden Lake (Macomb Ridge); Sierra Nevada, Yosemite National Park 3048 Comment
  UC1178824  Limnanthes alba subsp. versicolor Herbert L. Mason 1939-7-13 12135 Tuolumne woods around Miguel Meadows (w of Hetch Hetchy); Sierra Nevada, Yosemite National Park 1584 Comment
  UC1178841  Sedum radiatum Herbert L. Mason 1938-7-21 11880 Tuolumne just n Hetch Hetchy Valley (at junction of Frog Creek and Vernon Lake trail); Sierra Nevada, n of Hetch Hetchy Valley 1798 Comment
  UC1178915  Boechera davidsonii Herbert L. Mason 1938-7-25 12007 Tuolumne Mahan Peak Sierra Nevada, Yosemite National Park 2590 Comment
  UC1178967  Polygonum minimum Herbert L. Mason 1937-7-31 14839 Tuolumne just w Saurian Crest; Yosemite National Park, Grace Meadow 2651 Comment
  UC1186144  Collomia grandiflora Herbert L. Mason 1938-7-7 11871 Tuolumne se Swamp Lake (w of Hetch Hetchy); Yosemite National Park, Breccia Ridge 1584 Comment
  UC1186146  Leptodactylon pungens Herbert L. Mason 1938-7-25 11999 Tuolumne Deep Lake at e base Mahan Peak (Yosemite National Park); , Deep lake e base Mahan Peak Comment
  UC1191185  Cheilanthes gracillima Herbert L. Mason Tuolumne Jack Main Canyon; Sierra Nevada, Yosemite Nat'l Park 2286 Comment
  UC1191217  Rhododendron occidentale Herbert L. Mason 1937-7-23 14837 Tuolumne nw of Hetch Hetchy Dam (Yosemite National Park, Laurel Lake); Sierra Nevada, Yosemite National Park, Laurel Lake 2011 Comment
  UC1191226  Agoseris aurantiaca Herbert L. Mason 1940-7-6 12315 Tuolumne west Hetch Hetchy Dam ((at Miguel Meadow)); Yosemite National Park, Miguel Meadow 1584 Comment
  UC1195912  Ranunculus orthorhynchus var. orthorhynchus Herbert L. Mason 1958-8-9 14885 Tuolumne Swamp Lake Sierra Nevada, Yosemite National Park, Hetch Hetchy Dam (w side of dam) 1584 Comment
  UC1195917  Veronica scutellata Herbert L. Mason 1958-8-9 14849 Tuolumne w of Hetch Hetchy DAm (Swamp Lake, Yosemite National Park); Sierra Nevada, Yosemite National Park, Swamp Lake 1584 Comment
  UC1195918  Trifolium longipes Herbert L. Mason 1958-8-9 14865 Tuolumne w Hetch Hetchy Dam (Swamp Lake); Sierra Nevada, Yosemite National Park 1584 Comment
  UC1195924  Panicum rigidulum var. rigidulum Herbert L. Mason 1958-8-9 14855 Tuolumne w side of Hetch Hetchy Dam (Sierra Nevada, Yosemite National Park, Swamp Lake area); Sierra Nevada, Yosemite National Park, Swamp Lake area 1584 Comment
  UC1195926  Pinus contorta Herbert L. Mason 1958-8-9 14857 Tuolumne w side Hetch Hetchy Dam (Swamp Lake area); Yosemite National Park, Swamp Lake 1584 Comment
  UC1199828  Piperia transversa Herbert L. Mason 1937-7-22 11619 Tuolumne just s Miguel Meadows (just w of Hetch Hetchy Dam); Sierra Nevada, Yosemite National Park, Swamp Lake 1584 Comment
  UC1199829  Epipactis gigantea Herbert L. Mason 1937-7-22 11595 Tuolumne s Miguel Meadows (in hills just w of Hetch Hetchy Dam); Sierra Nevada, Yosemite National Park, Swamp Lakes 1584 Comment
  UC1199838  Allium tribracteatum Herbert L. Mason 1938-7-25 12026 Tuolumne Bailey Ridge Sierra Nevada, Yosemite National Park, Bailey Ridge 2834 Comment
  UC1199851  Dodecatheon alpinum Herbert L. Mason 1925-8-11 2220 Tuolumne White Wolf Comment
  UC1199863  Dodecatheon alpinum H. L. Mason 1922-8-25 348 Tuolumne Dana Fork Tuolumne River Sierra Nevada Mountains, Yosemite National Park (Tuolumne Meadows) Comment
  UC1212208  Sclerolinon digynum Herbert L. Mason 1939-7-11 12119 Tuolumne 0.5 mi below Swamp Lake (nw part of Yosemite National Park); Yosemite National Park 1554 Comment
  UC240192  Typha latifolia Herbert L. Mason 1958-8-6 Tuolumne w Hetch Hetchy (Swamp Lake, Yosemite National Park); Sierra Nevada, Yosemite National Park, w of Hetch Hetchy 1584 Comment
  UC465583  Arenaria kingii var. glabrescens Herbert L. Mason 1938-7-26 12019 Tuolumne s Jack Main Meadows; Sierra Nevada, Yosemite National Park, Andrews Peak 2438 Comment
  UC525883  Sambucus mexicana H. L. Mason 1925-6-27 2128 Tuolumne Mather Comment
  UC545811  Coreopsis stillmanii Herbert L. Mason 1936-3-21 11019 Tuolumne 4 mi n Coulterville Comment
  UC555327  Geum macrophyllum H. L. Mason 1922-7-24 319 Tuolumne Aspen Valley, Tioga Road, Yosemite National Park Aspen Valley; Sierra Nevada Mountains, Yosemite National Park, Aspen Valle 1676 Comment
  UC555536  Lotus purshianus var. purshianus H. L. Mason 1925-7-2 2140 Tuolumne Mather Sierra Nevada Mountains, Yosemite National Park Comment
  UC565521  Stephanomeria lactucina H. L. Mason 1926-7-30 2192 Tuolumne Smith Peak Trail, Mather Sierra Nevada Mountains, Yosemite National Park Comment
  UC565576  Hulsea heterochroma H. L. Mason 1923-7-21 635 Tuolumne Hetch Hetchy; Yosemite National Park Comment
  UC565591  Penstemon newberryi var. newberryi Herbert L. Mason 1923-7-21 631 Tuolumne Hetch Hetchy Valley - Canyon Ranch Comment
  UC566625  Arnica cordifolia H. L. Mason 1923-8-6 718 Tuolumne Dana Fork Sierra Nevada Mountains, Yosemite National Park Comment
  UC570852  Philadelphus lewisii Herbert L. Mason 1925-6-27 2127 Tuolumne Mather Comment
  UC570854  Darmera peltata Herbert L. Mason 1923-7-20 626 Tuolumne near Ackerson Meadows; Middlefork Tuolumne River Comment
  UC570862  Parnassia californica Herbert L. Mason 1923-8-22 761 Tuolumne Tuolumne River, Lyell Fork Tuolumne River; , Lyell Fork Comment
  UC570970  Ribes roezlii Herbert L. Mason 1925-7-15 2159 Tuolumne Mather Comment
  UC570978  Ribes montigenum Herbert L. Mason 1923-8-2 703 Tuolumne headwaters of Unicorn Creek, w shore of upper Elizabeth Lake Elizabeth Lake, Unicorn Creek Comment
  UC571036  Vaccinium uliginosum subsp. occidentale Herbert L. Mason 1923-7-31 677 Tuolumne Lyell Fork of the Tuolumne River Yosemite National Park, Tuolumne River Comment
  UC571147  Sedum lanceolatum H. L. Mason 1923-8-2 686 Tuolumne summit of Saddle e Unicorn Peak (Sierra Nevada Mountains, Yosemite National Park); Sierra Nevada Mountains, Yosemite National Park Comment
  UC581148  Antennaria corymbosa H. L. Mason 1923-7-30 675 Tuolumne Lyell Fork of the Tuolumne River; Tuolumne River Comment
  UC581501  Viola adunca H. L. Mason 1923-7-28 655 Tuolumne White Wolf, Tioga Pass Road White Wolf 2438 Comment
  UC592145  Streptanthus diversifolius Herbert L. Mason 1922-7-9 576 Tuolumne Mather 1432 Comment
  UC599126  Carex preslii H. L. Mason 1938-7-25 11987 Tuolumne south base of Mahan Peak (Jack Main Canyon); Yosemite National Park 2438 Comment
  UC599131  Carex raynoldsii H. L. Mason 1938-7-26 12021 Tuolumne Meadows Jack Main; Yosemite National Park, Andrew Peak 2438 Comment
  UC599135  Carex hassei H. L. Mason 1938-7-9 11895 Tuolumne w Hetch Hetchy; Yosemite National Park, Swamp Lake 1584 Comment
  UC599137  Carex buxbaumii H. L. Mason 1938-7-9 11901 Tuolumne w Hetch Hetchy; Yosemite National Park, Swamp Lake 1584 Comment
  UC604427  Dodecatheon jeffreyi H. L. Mason 1936-7-10 11197 Tuolumne Lukens Lake Yosemite National Park, Lukens Lake 2560 Comment
  UC629709  Lipocarpha occidentalis H. L. Mason 1938-7-10 11904 Tuolumne w of Hetch-Hetchy (Yosemite National Park, Miguel Meadow); Yosemite National Park, Miguel Meadow 1584 Comment
  UC632746  Juncus triformis H. L. Mason 1938-7-11 11939 Tuolumne w of Hetch Hetchy; Yosemite National Park, Miguel Meadow 1584 Comment
  UC632750  Eriophorum gracile H. L. Mason 1938-7-10 11913 Tuolumne w. Hetch Hetchy dam (south island in Swamp Lake); Yosemite Nat'l Park, Swamp Lake 1584 Comment
  UC632760  Lupinus stiversii H. L. Mason 1938-7-6 11861 Tuolumne between Swamp Lake and Miguel Meadow (Yosemite National Park); Sierra Nevada, , btw Swamp Lake and Mi 1645 Comment
  UC632771  Lipocarpha micrantha H. L. Mason 1938-7-10 11905 Tuolumne w of Hetch Hetchy (Yosemite National Park, Miguel Meadow); Yosemite National Park Yosemite National Park Yosemite Natio 1584 Comment
  UC632777  Cyperus squarrosus H. L. Mason 1938-8-1 12070 Tuolumne Tiltill Valley Yosemite Nat'l Park, Tiltill Valley 1676 Comment
  UC632781  Dulichium arundinaceum H. L. Mason 1938-7-10 11920 Tuolumne w of Hetch Hetchy (South Island in Swamp Lake, Yosemite National Park); Yosemite National Park, South Island in Swamp Lake 1584 Comment
  UC632800  Galium porrigens H. L. Mason 1936-3-20 11009 Tuolumne three mi above Tuolumne Comment
  UC632847  Mentha canadensis H. L. Mason 1936-7-15 11248 Tuolumne 1/2 mi w Mather 1371 Comment
  UC632854  Micropus californicus var. californicus H. L. Mason 1936-4-13 11090 Tuolumne Italian Bar Comment
  UC632864  Pseudobahia heermannii H. L. Mason 1936-3-20 11002 Tuolumne 3 mi above Tuolumne Comment
  UC634539  Salix eastwoodiae H. L. Mason 1923-7-29 668 Tuolumne Dana Fork Tuolumne Meadows Comment
  UC634566  Ceanothus cuneatus var. cuneatus Herbert L. Mason 1925-6-27 2126 Tuolumne Mather (Hog Ranch) Comment
  UC634740  Rhododendron occidentale H. L. Mason 1925-6-29 2137 Tuolumne Lake Eleanor 1432 Comment
  UC634782  Oxypolis occidentalis H. L. Mason 1925-8-6 2208 Tuolumne near Mather (in bogs) Comment
  UC634783  Oxypolis occidentalis H. L. Mason 1925-7-29 2185 Tuolumne near Mather; Hog Ranch Comment
  UC634857  Nemacladus capillaris H. L. Mason 1938-7-7 11866 Tuolumne ridge between Swamp Lake and Hetch Hetchy; Yosemite National Park 1981 Comment
  UC635155  Pyrola picta H. L. Mason 1923-7-20 620 Tuolumne near edge of Ackerson Meadows Ackerson Meadows Comment
  UC635178  Stachys ajugoides var. rigida H. L. Mason 1925-7-16 2168 Tuolumne near Mather (Hog Ranch) Comment
  UC635329  Montia chamissoi H. L. Mason 1923-8-7 721 Tuolumne Dana Fork of Tuolumne River, Yosemite National Park Tuolumne River; Sierra Nevada Mountains, Yosemite National Park, Tuolumne Ri Comment
  UC635412  Actaea rubra H. L. Mason 1925-8-11 2212 Tuolumne Big Oak Flat Rd. to Tuolumne Grove Comment
  UC635421  Ranunculus aquatilis var. hispidulus H. L. Mason 1925-6-27 2120 Tuolumne Hog Ranch Mather Comment
  UC635614  Eschscholzia caespitosa H. L. Mason 1923-6-30 301 Tuolumne roadside above Oakland Recreation Camp at South Fork 1066 Comment
  UC635636  Limnanthes alba subsp. versicolor H. L. Mason 1924-5-29 1025 Tuolumne Hog Ranch Sierra Nevada Mountains, Yosemite National Park, Mather (in stream bed) Comment
  UC635691  Heterocodon rariflorum H. L. Mason 1923-7-12 578 Tuolumne Mather; Sierra Nevada Mountains, Yosemite National Park Comment
  UC641772  Eriogonum incanum H. L. Mason 1936-7-24 11341 Tuolumne White Mountain Sierra Nevada, Mount Conness Range, White Mountain Comment
  UC641789  Rumex paucifolius H. L. Mason 1936-7-23 11286 Tuolumne Mount Conness Sierra Nevada, Tioga Pass Region Comment
  UC641790  Rumex paucifolius H. L. Mason 1936-7-24 11338 Tuolumne White Mountain Sierra Nevada, Mount Conness Range, Tioga Pass Region Comment
  UC641798  Oxyria digyna H. L. Mason 1936-7-23 11292 Tuolumne alpine slopes Mount Conness; Sierra Nevada, slopes of Mount Conness Comment
  UC641962  Luzula spicata H. L. Mason 1936-7-23 11276 Tuolumne alpine slopes se of summit Mount Conness; Sierra Nevada, se of summit Mount Conness 3505 Comment
  UC642009  Eriogonum ovalifolium var. nivale H. L. Mason 1936-7-23 11829 Tuolumne alpine slopes of Mount Conness Sierra Nevada, Mount Conness Comment
  UC642058  Allium obtusum H. L. Mason 1936-7-24 11322 Tuolumne White Mountain, Mount Conness Range Sierra Nevada, Mount Conness Range, White Mountain Comment
  UC642674  Lewisia glandulosa H. L. Mason 1936-7-23 11283 Tuolumne alpine slopes of Mount Conness Sierra Nevada, Mount Conness Comment
  UC642682  Calyptridium umbellatum H. L. Mason 1936-7-23 11310 Tuolumne Mount Conness; Sierra Nevada, Mount Conness Comment
  UC665616  Allophyllum integrifolium Herbert L. Mason 1941-7-12 12479 Tuolumne w. Hetch Hetchy Valley (Miguel Meadow); Sierra Nevada, Yosemite Nat'l Park, Miguel Meadow Comment
  UC672066  Trillium angustipetalum Herbert L. Mason 1925-7-30 2188 Tuolumne n.e. Mather (Smith Peak Trail) Comment
  UC672140 Image available Calochortus venustus Herbert L. Mason 1923-7-12 585 Tuolumne near Mather; Yosemite National Park, Hog Ranch Comment
  UC672305  Oreostemma alpigenum var. andersonii H. L. Mason 1923-8-21 754 Tuolumne junction of Lyell Fork and Dana Fork of Tuolumne River, n base of Puppy Dome Sierra Nevada Mts, Yosemite National Park, Puppy Dome Comment
  UC672487  Cordylanthus tenuis subsp. tenuis H. L. Mason 1925-7-30 2193 Tuolumne ne Mather (Smith Peak Trail) Comment
  UC672533  Mimulus torreyi H. L. Mason 1923-7-14 594 Tuolumne Mather Comment
  UC672534  Mimulus microphyllus H. L. Mason 1923-7-13 593 Tuolumne Hog Ranch Mather Comment
  UC673310  Potentilla drummondii Herbert L. Mason 1923-8-6 717 Tuolumne near Lyell Fork Tuolumne River (Yosemite National Park); Sierra Nevada, Yosemite Natl Park, Lyell Fork Tuolumne R Comment
  UC673326  Potentilla amicarum Herbert L. Mason 1923-8-9 747 Tuolumne Gaylor Lakes Sierra Nevada, Yosemite National Park, Gaylor Lakes Comment
  UC673331  Potentilla diversifolia var. diversifolia Herbert L. Mason 1923-8-8 730 Tuolumne 0.5 mi from mouth, Dana Fork Tuolumne River Moraine Creek; Sierra Nevada, Yosemite Natl Park, Dana Fork Tuolumne R Comment
  UC673335  Potentilla gracilis var. fastigiata Herbert L. Mason 1923-8-8 725 Tuolumne 0.5 mi from mouth, Dana Fork Tuolumne River, Yosemite National Park Moraine Creek; Sierra Nevada, Yosemite Natl Park, Dana Fork Tuolumne R Comment
  UC673601  Lathyrus sulphureus H. L. Mason 1925-7-4 2143 Tuolumne Mather Sierra Nevada Mountains, Yosemite National Park Comment
  UC712247  Penstemon heterodoxus H. L. Mason 1936-7-23 11275 Tuolumne alpine slopes of Mount Conness , Mount Conness (Sierra Nevada) 3505 Comment
  UC712252  Galium bifolium Herbert L. Mason 1936-7-25 Tuolumne meadow below cirque on west side of mountain; Mount Conness Range, White Mountain 3200 Comment
  UC712400  Antennaria media H. L. Mason 1936-7-23 11273 Tuolumne alpine slopes of Mount conness; Sierra Nevada 3505 Comment
  UC712506  Erigeron pygmaeus H. L. Mason 1936-7-24 11346 Tuolumne White Mountain Sierra Nevada, Mount Conness Range, White Mountain 3505 Comment
  UC712511  Erigeron pygmaeus H. L. Mason 1936-7-23 11284 Tuolumne Mount Conness Sierra Nevada, Mount Conness 3505 Comment
  UC714376  Astragalus kentrophyta var. danaus H. L. Mason 1936-7-30 11446 Tuolumne vicinity Mount Conness (Shepherds Crest); Sierra Nevada, vicin Mount Conness, Shepherds Crest Comment
  UC714391  Podistera nevadensis Herbert L. Mason 1936-7-23 11288 Tuolumne Mount Conness Sierra Nevada 3505 Comment
  UC714480  Packera werneriifolia H. L. Mason 1936-7-22 11266 Tuolumne above Young Lake (Ragged Peak, Mount Conness Range); Sierra Nevada, Mount Conness Range, Ragged Peak Comment
  UC907882  Gilia capitata subsp. pedemontana Herbert L. Mason 1923-7-26 650 Tuolumne Mather Comment
  UC907910  Collomia linearis Herbert L. Mason 1925-8-11 2222 a Tuolumne Morraine Flat Tuolumne Meadows 2743 Comment
  UC907960  Phlox gracilis Herbert L. Mason 1941-7-12 12480 Tuolumne nw of Hetch-Hetchy Dam; Yosemite National Park, Miguel Meadows Comment
  UC908029  Phlox gracilis Herbert L. Mason 1928-7-4 4869 Tuolumne Tuolumne Meadows Comment
  UC908178  Navarretia intertexta Herbert L. Mason 1923-7-15 603 Tuolumne 3 mi w Mather; Salt Log 1371 Comment
  UC908393 Image available Navarretia divaricata subsp. vividior Herbert L. Mason 1941-7-12 12480 a Tuolumne Miguel Meadows, Yosemite National Park Comment
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Aug 18 2015
  UC908968  Navarretia leptalea subsp. leptalea Herbert L. Mason 1923-7-14 595 a Tuolumne Mather Sierra Nevada, Mather 1432 Comment
  UC909006  Polemonium occidentale Herbert L. Mason 1923-7-30 671 Tuolumne Tuolumne Meadows Dana Fork Tuolumne River, Tuolumne Meadows Comment
  UC909138  Phlox gracilis Herbert L. Mason 1928-7-5 4873 Tuolumne Tioga Pass Comment
  UC912377  Calystegia malacophylla subsp. malacophylla H. L. Mason 1925-7-4 2144 Tuolumne Mather Sierra Nevada Mountains, Yosemite National Park, Mather (Yosemite National Park, Sierra Nevada Mountains) Comment
  UC912473  Calyptridium monospermum Herbert L. Mason 1923-7-14 595 Tuolumne Mather Comment
  UC912498  Cirsium andersonii Herbert L. Mason 1923-8-22 761 Tuolumne Lyell Fork Comment
  UC912510  Wyethia mollis Herbert L. Mason 1923-8-7 719 Tuolumne s-facing slope Dana Fork Comment
  UC912684  Isoetes occidentalis Herbert L. Mason 1936-7-15 11249 Tuolumne 1/2 mi w Mather Comment
  UC936172  Minuartia obtusiloba Herbert L. Mason 1936-7-24 11320 Tuolumne White Mountain Yosemite National Park, Conness Range. Comment
  UC936209  Minuartia obtusiloba H. L. Mason 1936-7-24 11352 Tuolumne White Mountain Yosemite National Park, Conness Range. Comment
  UC964732  Lindernia dubia var. anagallidea Herbert L. Mason 1925-7-16 2175 Tuolumne Mather Comment
  UC972238  Linanthus filipes Herbert L. Mason 1936-4-13 11087 Tuolumne Italian Bar Comment
  UCD39810  Navarretia vividior Herbert L. Mason 1941-7-12 12480 a Tuolumne Yosemite National Park, Miguel Meadows. 1889 Comment
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Aug 18 2015
  UCD61353  Danthonia unispicata H. L. Mason 1938-7-25 12012 Tuolumne At east base of Mahan Peak, Yosemite Natl. Park. Comment
  UCD61488  Elymus elymoides H. L. Mason 1936-7-27 11389 Tuolumne Gaylor Lakes, west of Tioga Pass, Yosemite Natl. Park. Comment
  UCD62578  Elymus sierrae H. L. Mason 1938-7-28 12029 Tuolumne Yosemite National Park. Macomb Ridge, N of Tiltill Mtn. 3017 Comment
  UCD86813  Muhlenbergia montana H. L. Mason 1938-7-22 11972 Tuolumne Vernon Lake Trail, north and east of Hetch-Hetchy, Yosemite Natl. Park. Comment
  UCD88710  Panicum acuminatum var. fasciculatum H. L. Mason 1939-7-22 11968 Tuolumne Vernon Lake Trail, north and east of Hetch-Hetchy, Yosemite National Park. Comment
  UCD91603  Poa wheeleri H. L. Mason 1936-7-23 11301 Tuolumne Alpine slopes of Mt. Conness, Yosemite National Park. Comment
  UCD91604  Poa wheeleri H. L. Mason 1936-7-24 11331 Tuolumne White Mountain. Comment
  YM-YOSE65389  Carex buxbaumii H. L. Mason 1938-7-11 11942 Tuolumne SWAMP LAKE RESEARCH RESERVE. SOUTH ISLAND Comment
  YM-YOSE65399  Carex congdonii H. L. Mason 1938-7-28 12046 Tuolumne MACOMB RIDGE EAST OF TILDEN LAKE 3048 Comment
  YM-YOSE65566  Dulichium arundinaceum H. L. Mason 1938-7-10 11920 Tuolumne SWAMP LAKE RESEARCH RESERVE. SOUTH ISLAND. SWAMP LAKE Comment
  YM-YOSE65577  Eriophorum gracile H. L. Mason 1938-7-10 11913 Tuolumne SWAMP LAKE RESEARCH RESERVE. SOUTH ISLAND. SWAMP LAKE Comment
  YM-YOSE65672  Juncus dubius H. L. Mason 1938-7-10 11925 Tuolumne SWAMP LAKE RESEARCH RESERVE. SOUTH ISLAND. SWAMP LAKE Comment
  YM-YOSE66550  Utricularia vulgaris Harry L. Mason 1938-7-10 11916 Tuolumne SWAMP LAKE RESEARCH RESERVE, SOUTH ISLAND OF LAKE Comment
  YM-YOSE66651  Calamagrostis canadensis H. L. Mason 1938-7-10 11914 Tuolumne SOUTH ISLAND. SWAMP LAKE Comment
  YM-YOSE66978  Muhlenbergia filiformis H. L. Mason 1938-7-10 11911 Tuolumne SWAMP LAKE RESEARCH RESERVE. SOUTH ISLAND. SWAMP LAKE Comment
  CAS-BOT-BC153819  Erythranthe filicaulis C. T. Mason, Jr. 1954-6-7 1545 Tuolumne East of Carnegie Institution Camp, Hog Ranch, Mather 1371 Comment
  CAS-BOT-BC165008  Clarkia rhomboidea H. L. Mason 1926-7-4 2150 Tuolumne Mather Comment
  CAS-BOT-BC165018  Clarkia rhomboidea Herbert L. Mason 1926-7-4 2150 Tuolumne Mather Comment
  CAS-BOT-BC16799  Delphinium polycladon Herbert L. Mason; L. W. Reinecke 1937-7-28 14822 Tuolumne Mary Lake 2895 Comment
  CAS-BOT-BC215687  Lycopus uniflorus Herbert L. Mason; L. W. Reinecke 1937-7-22 11589 Tuolumne Swamp Lake, just south of Miguel Meadows, jsut west of Hetch Hetchy Dam, Yosemite National Park 1584 Comment
  CAS-BOT-BC254506  Dichanthelium acuminatum subsp. acuminatum Herbert L. Mason 1958-8-9 14871 Tuolumne Yosemite National Park. Swamp Lake area, W side of Hetch Hetchy Dam 1584 Comment
  CAS-BOT-BC290501  Crepis acuminata Herbert L. Mason 1938-7-7 11873 Tuolumne Sierra Nevada, Yosemite National Park. Between Swamp Lake and Hetch-Hetchy 1981 Comment
  CAS-BOT-BC69082  Sedum stenopetalum subsp. stenopetalum Herbert L. Mason 1938-7-21 11880 Tuolumne At junction of Frog Creek and Vernon Lake trail, just North of Hetch Hetchy Valley 1798 Comment
  CAS-BOT-BC77775  Woodsia scopulina Herbert L. Mason 1938-7-26 12016 Tuolumne Andrew Peak, south of Jack Main Meadows 2438 Comment
  POM256455  Epilobium obcordatum H. L. Mason 1923-9-15 784 Tuolumne Sierra Nevada, Yosemite National Park: Upper Lake, Gaylor Lakes, near Tioga Mine Comment
  POM269617  Ranunculus flammula var. ovalis H. L. Mason 1923-7-13 592 Tuolumne Hog Ranch, Mather Comment
  POM270300  Thalictrum sparsiflorum H. L. Mason 1923-8-1 680 Tuolumne Lyell Fork, Sierra Nevada Mtns, Tuolumne County Comment
  POM270566  Aquilegia formosa var. truncata H. L. Mason 1923-7-12 586 Tuolumne Mather, Dry edges of meadows Comment
  POM311130  Limnanthes striata C. T. Mason 1949-5-9 1285 Tuolumne Keystone-La Grange road 2 miles southeast of Keystone. Comment
  POM312561  Lycopus uniflorus H. L. Mason 1937-7-22 11589 Tuolumne Yosemite Nat l Park: Swamp Lake, just south of Miguel Meadows, just west of Hetch Hetchy Dam 1585 Comment
  POM313083  Scirpus congdonii H. L. Mason, Lawrence W. Reinecke 1937-7-22 11573 Tuolumne Yosemite Nat l Park: Swamp Lake, just south of Miguel Meadows, just west of Hetch Hetchy Dam 1585 Comment
  RSA0016981  Rotala ramosior H. L. Mason 1936-7-15 11256 Tuolumne Margin of pool, 1/2 mile W of Mather 1372 Comment
  SEINET10713505  Carex multicaulis Herbert L. Mason 1939-7-8 Mason 11882 Tuolumne Pinus ponderosa slope, north of Swamp Lake, Hetch Hetchy drainage, Sierra Nevada. 1615 Comment
  SEINET11602125 Image available Lactuca tatarica subsp. pulchella H. L. Mason 1940-1 12316 Tuolumne Miguel Meadows; Yosemite National Park 1585 Comment
  SEINET11753105  Dulichium arundinaceum H. L. Mason 1958-1 14848 Tuolumne Sierra Nevada, Yosemite National Park, Swamp Lake, W of Hetch Hetchy Dam 1585 Comment
  SEINET4152200  Stenophyllus capillaris H. L. Mason 1938-7-6 11858 Tuolumne Between Swamp Lake and Miguel Meadow 1646 Comment
  SEINET4170662 Image available Hemicarpha occidentalis H. L. Mason 1938-7-10 11904 Tuolumne Miguel Meadow, W. of Hetch-Hetchy; Yosemite National Park 1585 Comment
  SEINET6626571 Image available Elatine brachysperma Herbert L. Mason 1936-1 12757 Tuolumne 0.5 mile west of Mather, Sierra Nevada Comment
  SEINET6647416  Drosera rotundifolia H. L. Mason, L. W. Reinecke 1937-7-22 11578 Tuolumne Yosemite National Park, Swamp Lake, just south of Miguel Meadaows in the hills just west of Hetch Hetchy. 1585 Comment
  UC1039579  Dodecatheon jeffreyi H. L. Mason 1922-8-2 338 Tuolumne Lyell Fork Tuolumne River Sierra Nevada Mountains, Yosemite National Park (Tuolumne Meadows) Comment
  UC1056429  Montia fontana Herbert L. Mason 1936-3-20 11008 Tuolumne 3 mi above Tuolumne (Yosemite National Park); Sierra Nevada, Yosemite National Park Comment
  UC1056432  Limnanthes alba Herbert L. Mason 1936-3-20 11017 Tuolumne three mi above Tuolumne; Sierra Nevada, Yosemite National Park Comment
  UC1056971  Platystemon californicus Herbert L. Mason 1936-3-21 11042 Tuolumne Jacksonville Mine Comment
  UC1076548  Salix orestera Herbert L. Mason 1945-9-7 12690 a Tuolumne e. of Tioga Pass (along stream at outlet of Tioga Lake); Sierra Nevada, Yosemite Nat'l Park Comment
  UC1081536  Valeriana californica Herbert L. Mason 1936-7-23 11281 Tuolumne Alpine slopes se of summit of Mt. Conness; Sierra Nevada, Yosemite National Park 3505 Comment
  UC1093956  Lupinus benthamii Herbert L. Mason 1936-3-20 11016 Tuolumne three mi above Tuolumne (Yosemite National Park); Sierra Nevada, , above Tuolumne Comment
  UC1178027  Hymenoxys hoopesii Herbert L. Mason and L. W. Reinecke 1937-7-31 14809 Tuolumne Upper Huckleberry Meadow Sierra Nevada, Upper Huckleberry Meadow 2621 Comment
  UC1191156  Dodecatheon alpinum H. L. Mason 1922-8-20 343 Tuolumne Morraine Flat Sierra Nevada Mountains, Yosemite National Park (n of Lambert's Dome, Tuolumne Meadows) Comment
  UC1199832  Brodiaea elegans subsp. elegans Herbert L. Mason 1937-7-25 Tuolumne 1 mi s Lake Vernon (on trail from Beehive); Sierra Nevada, Yosemite National Park 1981 Comment
  UC499445 Image available Dodecatheon hendersonii var. yosemitanum H. L. Mason 1922-7-25 322 Tuolumne between Yosemite Creek bridge and Porcupine Flat, Tioga Road Yosemite National Park; Tioga Road, Yosemite National Park Comment
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Mar 30 2015
  UC555461  Cercis occidentalis H. L. Mason 1929-4-7 5191 Tuolumne hills between Sonora and Angels Camp Comment
  UC634947  Thalictrum fendleri H. L. Mason 1923-7-28 661 Tuolumne Porcupine Flat Sierra Nevada Mountains Comment
  UC635221  Dichelostemma multiflorum H. L. Mason 1923-7-12 583 Tuolumne Hog Ranch Sierra Nevada Mountains, Yosemite National Park Comment
  UC635452  Dicentra chrysantha H. L. Mason 1922-6-30 302 Tuolumne between Groveland and Mather (Hetch Hetchy Railroad tracks, above Oakland Recreation Camp); Sierra Nevada Mountains, Yosemite National Park 1066 Comment
  UC672637  Pellaea breweri H. L. Mason 1923-8-9 742 Tuolumne ridge w of 5th Lake Gaylor Lakes; Sierra Nevada Mts, Yosemite Nat'l Park Comment
  UC673484  Cicuta douglasii H. L. Mason 1940-7-7 12325 Tuolumne Tuolumne River drainage sw of Hetch Hetchy ( Yosemite National Park, Poison Meadow); Sierra Nevada, Yosemite National Park, Poison Meadow 1524 Comment
  UC714313  Carex helleri H. L. Mason 1936-7-23 11270 Tuolumne e summit of Mount Conness; Sierra Nevada Comment
  UC908654  Linanthus bicolor Herbert L. Mason 1924-6-5 1031 Tuolumne just e Groveland (along road) Comment
  YM-YOSE63891  Lomatium utriculatum H. L. Mason 1938-7-7 11868 Tuolumne BRECCA RIDGE SE OF SWAMP LAKE Comment
  YM-YOSE64741  Limnanthes montana H. L. Mason 1938-7-11 11940 Tuolumne GRAVEL PIT LAKE. SWAMP LAKE RESEARCH RESERVE. MIGUEL MEADOW Comment
  YM-YOSE65084  Delphinium hansenii var. arcuatum H. L. Mason 1938-7-7 11874 Tuolumne RIDGE EAST OF SWAMP LAKE. SWAMP LAKE RESEARCH RESERVE. Comment
  YM-YOSE65388  Carex buxbaumii H. L. Mason 1938-7-9 11901 Tuolumne SWAMP LAKE RESEARCH RESERVE 1584 Comment
  YM-YOSE65519  Carex preslii H. L. Mason 1938-7-30 12059 Tuolumne SOUTH END TILTILL MTN. 2590 Comment
  YM-YOSE65591  Stenophyllus capillaris H. L. Mason 1938-7-11 11934 Tuolumne SWAMP LAKE RESEARCH RESERVE. GRAVEL PIT LAKE. MIGUEL MEADOWS Comment
  YM-YOSE67137  Dryopteris arguta Harry L. Mason 1938-7-7 11872 Tuolumne SOUTHEAST SWAMP LAKE 1554 Comment
  A343914  Morella californica H. L. Mason 1928-8-25 4926 Unknown At border of deep forest and pygmy forest; mesa, one mile east of mouth of Noyo River, Noyo Comment
  A346446  Prunus emarginata H. L. Mason 1933-9-2 7263 Unknown Silver Lake, Sierra Nevada Mountains Comment
  A346750  Prunus virginiana var. demissa H. L. Mason 1921-5-14 Unknown Haywards Comment
  A362003  Arctostaphylos pechoensis var. viridissima H. L. Mason 1938-5-8 11803 Unknown vicinity of the summit of Figueroa Mountain Comment
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Feb 19 2015
  A362728  Kalmia microphylla H. L. Mason 1938-7-6 11852 Unknown Sierra Nevada, Swamp Lake, Yosemite National Park Comment
  A367049  Mimulus aurantiacus var. grandiflorus H. L. Mason 1921-5-7 Unknown Carmel River, Rancho del Monte Comment
  A378109  Frangula purshiana H. L. Mason 1924-6-19 1071 Unknown Along stream running north into Bear Lake Comment
  GH341837  Vulpia microstachys var. ciliata H. L. Mason 1932-5-4 7066 Unknown Laundry farm, Oakland hills Comment
  GH345648  Horkelia parryi H. L. Mason 1928-5-3 4464 Unknown One mile south of Ione Comment
  GH345702  Ivesia lycopodioides H. L. Mason 1936-7-29 11428 Unknown terminal moraine of Conness Glacier, Sierra Nevada 3505 Comment
  GH345735  Ivesia shockleyi H. L. Mason 1936-7-28 11398 Unknown Dana plateau, vicinity of Mount Dana, Sierra Nevada 3657 Comment
  GH346189  Rubus leucodermis H. L. Mason 1925-7-16 2171 Unknown Hog Ranch, Mather Comment
  GH346789  Amelanchier alnifolia H. L. Mason 1928-5-3 4490 Unknown Near bridge of Cosumnes River at mouth of Clark Creek Comment
  GH346914  Malus fusca H. L. Mason 1932-7-21 7101 Unknown Big Lagoon Comment
  GH347953  Ptelea crenulata H. L. Mason 1928-3-31 Unknown Mt. Diablo Comment
  GH347954  Ptelea crenulata H. L. Mason 1928-3-31 Unknown Mt. Diablo Comment
  GH350161  Arctostaphylos columbiana H. L. Mason 1928-4-8 4290 Unknown Fort Ross Comment
  GH350365  Arctostaphylos glandulosa var. cushingiana H. L. Mason 1925-2-1 1220 Unknown Mount Tamalpais Comment
  GH357429  Fritillaria purdyi H. L. Mason 1941-3-16 12385 Unknown Serpentine ridge, three miles east of Middletown, inner North Coast Range, Lake County Comment
  GH363032  Rhododendron columbianum H. L. Mason 1924-6-19 1075 Unknown Along margins of Bear Lakes Comment
  GH363348  Bolandra californica H. L. Mason 1930-07-01 - 1930-08-01 5708 Unknown Blue Creek, near Hermit Springs, Sierra Nevada Mountains Comment
  GH363379  Heuchera pilosissima H. L. Mason 1928-4-8 4286 Unknown Coast 2 miles N. of Ft. Ross Comment
  GH363409  California macrophylla H. L. Mason 1929-3-15 5060 Unknown Marsh Creek Road, about five miles from Brentwood Comment
  GH365654  Keckiella antirrhinoides H. L. Mason 1926-4-30 3142 Unknown Pala Grade Comment
  GH366514  Lotus formosissimus H. L. Mason 1928-4-8 4281 Unknown Fort Ross Comment
  GH367692  Clarkia breweri H. L. Mason 1940-5-5 12282 Unknown Tres Pinos Creek, 2.4 miles southeast of Emmet School on Panoche Pass road, Inner South Coast Ranges 457 Comment
  GH369901  Chorizanthe pungens H. L. Mason 1923-6-23 565 Unknown Del Monte Comment
  GH376201  Frankenia salina H. L. Mason 1928-9-30 4967 Unknown San Joaquin Delta near Holt Comment
  GH376994  Cistanthe quadripetala H. L. Mason 1935-5-30 10010 Unknown Four miles north of Knoxville on the Monticello-Lower Lake Road Comment
  GH379526  Erysimum capitatum var. angustatum H. L. Mason 1933-4-9 7189 Unknown East of Antioch along the San Joaquin River 12 Comment
  GH380721  Ribes quercetorum H. L. Mason 1926-4-10 2821 Unknown Arroyo Mocho Canyon Comment
  GH380896  Ribes speciosum H. L. Mason 1929-3-1 5018 Unknown Twenty-five miles up Carmel River on the Jamesburg to Arroyo Seco Road Comment
  GH381781  Aesculus californica H. L. Mason 1925-6-27 2129 Unknown Tuolumne Canyon near Mather Comment
  GH382384  Salix arctica H. L. Mason 1936-7-23 11300 Unknown alpine slopes Mount Conness, Sierra Nevada Comment
  GH384821  Styrax redivivus H. L. Mason 1931-5-9 5876 Unknown Pitt River Comment
  GH385113  Gilia capitata subsp. chamissonis H. L. Mason 1938-5-18 11840 Unknown Point Reyes Peninsula, 12.5 miles from Inverness Comment
  GH387065  Corethrogyne filaginifolia H. L. Mason 1926-5-26 3252 Unknown Niles Canyon Comment
  GH387213  Eastwoodia elegans H. L. Mason 1941-7-3 12490 Unknown head of Cuyama Valley, fourteen miles west of Maricopa 762 Comment
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Apr 29 2014
  GH400106  Zeltnera venusta H. L. Mason 1926-4-30 3126 Unknown Pala Grade, Temescal Canyon Comment
  GH401190  Fraxinus latifolia H. L. Mason 1925-9-17 2225 Unknown Ross Valley to Lake Lagunitas Comment
  GH414869  Eriophyllum confertiflorum H. L. Mason 1936-7-6 11136 Unknown Yosemite National Park, Yosemite Falls Trail, Mariposa County, Sierra Nevada Comment
  GH420030  Plagiobothrys chorisianus H. L. Mason 1927-4-23 3692 Unknown Between Pescadero Creek and La Honda Comment
  GH422484  Tropidocarpum capparideum H. L. Mason 1932-3-19 6818 Unknown Road from Mountain House to Midway, west of Tracy Comment
  GH424084  Carex limosa H. L. Mason 1938-7-10 11906 Unknown South island in Swamp Lake, west of Hetch Hetchy 1584 Comment
  GH424701  Cryptantha circumscissa H. L. Mason 1932-4-1 6868 Unknown One mile east of Lancaster, Mojave Desert Comment
  GH424976  Cryptantha rattanii H. L. Mason & E. Lee 1934-10-01 - 1934-11-01 9190 Unknown Whaler's Knoll, Point Lobos State Park Comment
  GH425078  Ceanothus parvifolius H. L. Mason 1926-5-31 3343 Unknown 1 mile west of Calaveras Grove Comment
  GH427054  Eriophyllum lanatum var. arachnoideum H. L. Mason 1934-4-28 8096 Unknown Jensen Ranch, at head of Dohrman Creek, four miles west of Healdsburg Comment
  GH427714  Senecio flaccidus var. monoensis H. L. Mason 1925-4-25 3088 Unknown Box S. Springs Comment
  GH78495  Eriastrum brandegeeae H. L. Mason 1945-6-28 12604 Unknown Obsidian Ridge, southeast of Borax Lake Comment
  A422797  Lonicera conjugialis H. L. Mason 1936-7-6 11160 Unknown Research Reserve, Hetch Hetchy Trail west of Dark Hole 2438 Comment
  GH244920  Solanum umbelliferum H. L. Mason 1928-5-3 4485 Unknown South bank of Cosumnes River opposite Clark Creek Comment
  GH360099  Koeleria cristata H. L. Mason 1932-4-28 7051 Unknown Laundry farm, Oakland Hills Comment
  GH366457  Lathyrus jepsonii H. L. Mason 1923-10-6 772 Unknown Along slough near railroad; Suisun Marsh Comment
  GH376220  Frankenia salina H. L. Mason 1929-10-13 5503 Unknown 2-1/3 miles north of Cambria Comment
  GH379988  Streptanthus breweri H. L. Mason 1952-6-19 14300 Unknown between Fouts Springs and Red Bridge Public Camp, Mendocino National Forest Comment
  GH400412  Mentha arvensis H. L. Mason 1942-9-7 Unknown 3 mi S. of Upper Lake 152 Comment
  GH427091  Eriophyllum jepsonii H. L. Mason 1935-5-8 10008 Unknown Patterson Road, twenty miles from mouth of Arroyo del Puerto, Mount Hamilton Range 533 Comment
  GH427136  Eriophyllum lanatum var. integrifolium H. L. Mason 1922-7-27 335 Unknown Yosemite National Park, south of Porcupine Flat 2895 Comment
  GH48919  Callitriche autumnalis var. bicarpellaris H. L. Mason 1928-5-3 4445 Unknown four miles north of Clementes Comment
  SEINET8125239 Image available Carex cusickii H. L. Mason 1938-1 11923 Unknown Comment
  UC565595  Keckiella ternata var. septentrionalis Herbert L. Mason 1923-6-18 511 Ventura Red Reef Canyon; Topatopa Mts. Comment
  UC570682  Solanum umbelliferum Herbert L. Mason 1923-6-18 500 Ventura Topa Topa Mountain, Timber Canyon Timber Canyon; Topa Topa Mountain, Timber Canyon Comment
  UC634772  Fremontodendron californicum subsp. californicum Herbert L. Mason 1923-6-18 496 Ventura Topatopa Mountain Comment
  UC635214  Rhus trilobata H. L. Mason 1923-6-18 512 Ventura Red Reef Canyon; Santa Barbara National Forest, Topatopa Mountains Comment
  CAS-BOT-BC167835  Polygala cornuta var. fishiae H. L. Mason 1923-6-20 524 Ventura Camp Comfort, San Antonio Canyon, Ojai Comment
  UC1039600  Phoradendron Herbert L. Mason 1923-6-17 474 Ventura Ojai Comment
  UC1076294  Orobanche bulbosa Herbert L. Mason 1923-6-18 477 Ventura above Ojai (Topatopa Mountains, Sisar Canyon); Topatopa Mountains, Sisar Canyon Comment
  UC566792  Sanicula bipinnatifida Herbert L. Mason 1927-5-11 3730 Yuba vicinity of Dobbins 457 Comment
  UC634626  Ceanothus lemmonii H. L. Mason 1927-5-11 3723 Yuba near Dobbins 457 Comment
  UC634899  Dicentra formosa Herbert L. Mason 1927-5-11 3734 Yuba near Bullards Bar; Yuba River Canyon 609 Comment
  UC635338  Delphinium gracilentum H. L. Mason 1927-5-11 3732 Yuba near Dobbins 457 Comment
  UC672148  Calochortus monophyllus Herbert L. Mason 1927-5-11 3725 Yuba near Dobbins 457 Comment



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